Aenesidemus is a German book published anonymously by Professor Gottlob Ernst Schulze of Helmstedt in 1792. Schulze attempted to refute the principles that Karl Leonhard Reinhold established in support of Immanuel Kant's Critique of Pure Reason (1781). The title is a reference to Aenesidemus, an ancient Greek Pyrrhonist philosopher. Its complete title, in English translation, was Aenesidemus or Concerning the Foundations of the Philosophy of the Elements Issued by Professor Reinhold in Jena Together with a Defense of Skepticism against the Pretensions of the Critique of Reason (German : Aenesidemus oder über die Fundamente der von dem Herrn Professor Reinhold in Jena gelieferten Elementar-Philosophie. Nebst einer Vertheidigung des Skepticismus gegen die Anmassungen der Vernunftkritik).
The book was supposed to be a written correspondence between Hermias (Greek: "a follower of Hermes"), who believes in the Kantian critical philosophy, and Aenesidemus (Greek: "he who praises the people"), who is skeptical about that philosophy. David Hume's skepticism about induction, according to this book, was not disproved by Kant. As Hume had asserted, the existence of causality, the soul, or the thing-in-itself cannot be proved.
Philosophy cannot establish the existence or non-existence of the thing-in-itself. By establishing general principles, we can't know the limits of our ability to know. Progressive development, however, can approach complete knowledge. [1]
No skeptic can doubt the reality and certainty of mental representations and mental events that are immediately given through consciousness.
Skepticism does not claim that metaphysical questions cannot be answered.
Skepticism doubts the possibility of knowledge about the existence or non-existence of the thing-in-itself. Kant, however, was guilty of begging the question in that he presupposed that the thing-in-itself exists and causally interacts with observing subjects.
Kant and Reinhold claimed that the reality of objects can be known from the representations in the mind of the observing subject. This is inferring objective reality from subjective thought. Such an inference is the fallacy of drawing existential conclusions from logical premises.
Kant's critical philosophy is self-contradictory. He said that things-in-themselves cause sensations in an observer's mind. Kant applied causality to noumena. But, in his critique, he had claimed that causality is a category of the understanding that can only be applied to phenomena.
Kant posited real existence to the postulates of God, Free Will, and Immortal Souls. But this is more than is necessary for moral theology, which only requires belief in them as Ideas of Reason.
The science of psychology does not require that the soul have faculties. Rather, psychology is a detailed description and systematic classification of actual mental events. [2]
If we were to take critical philosophy seriously, we would commit ourselves to resolving experiences into two parts — a system of universal subjective forms on one side, and a mass of amorphous, meaningless objective matter on the other. [3]
How can we be sure that Kant's obligation to be moral is the result of freedom? It might be the result of some irrational natural force.
Kant's response was indicated in his letter to Jakob Sigismund Beck, December 4, 1792:
Reinhold wrote that true skepticism rested on the fact that only the observing subject felt what was in its consciousness. The only truth is the subject's notion that there is an object that agrees with its internal mental representation.
Johann Fichte agreed with Reinhold's subjectivity. He based his own idealism on the observing subject's internal forms of knowledge. Arthur Schopenhauer agreed with Schulze: ["Therefore the world as [REPRESENTATION], in which aspect alone we are here considering it, has two essential, necessary, and inseparable halves. The one half is the object, whose forms are space and time, and through these plurality. But the other half, the subject, does not lie in space and time, for it is whole and undivided in every representing being. Hence a single one of these beings with the object completes the world as representation just as fully as do the millions that exist. And if that single one were to disappear, then the world as representation would no longer exist. Therefore these halves are inseparable even in thought, for each of the two has meaning and existence only through and for the other; each exists with the other and vanishes with it."]. [5]
Arthur Schopenhauer was a German philosopher. He is known for his 1818 work The World as Will and Representation, which characterizes the phenomenal world as the manifestation of a blind and irrational noumenal will. Building on the transcendental idealism of Immanuel Kant (1724–1804), Schopenhauer developed an atheistic metaphysical and ethical system that rejected the contemporaneous ideas of German idealism.
Idealism in philosophy, also known as philosophical idealism or metaphysical idealism, is the set of metaphysical perspectives asserting that, most fundamentally, reality is equivalent to mind, spirit, or consciousness; that reality is entirely a mental construct; or that ideas are the highest type of reality or have the greatest claim to being considered "real". Because there are different types of idealism, it is difficult to define the term uniformly.
In philosophy, a noumenon is knowledge posited as an object that exists independently of human sense. The term noumenon is generally used in contrast with, or in relation to, the term phenomenon, which refers to any object of the senses. Immanuel Kant first developed the notion of the noumenon as part of his transcendental idealism, suggesting that while we know the noumenal world to exist because human sensibility is merely receptive, it is not itself sensible and must therefore remain otherwise unknowable to us. In Kantian philosophy, the noumenon is often associated with the unknowable "thing-in-itself". However, the nature of the relationship between the two is not made explicit in Kant's work, and remains a subject of debate among Kant scholars as a result.
Aenesidemus was a 1st-century BC Greek Pyrrhonist philosopher from Knossos who revived the doctrines of Pyrrho and introduced ten skeptical "modes" (tropai) for the suspension of judgment. He broke with the Academic Skepticism that was predominant in his time, synthesizing the teachings of Heraclitus and Timon of Phlius with philosophical skepticism. Although his primary work, the Pyrrhonian Discourses, has been lost, an outline of the work survives from the later Byzantine empire, and the description of the modes has been preserved by a few ancient sources.
Friedrich Heinrich Jacobi was an influential German philosopher, literary figure, and socialite. He is notable for popularizing nihilism, a term coined by Obereit in 1787, and promoting it as the prime fault of Enlightenment thought particularly in the philosophical systems of Baruch Spinoza, Immanuel Kant, Johann Fichte and Friedrich Schelling.
German idealism is a philosophical movement that emerged in Germany in the late 18th and early 19th centuries. It developed out of the work of Immanuel Kant in the 1780s and 1790s, and was closely linked both with Romanticism and the revolutionary politics of the Enlightenment. The period of German idealism after Kant is also known as post-Kantian idealism or simply post-Kantianism. One scheme divides German idealists into transcendental idealists, associated with Kant and Fichte, and absolute idealists, associated with Schelling and Hegel.
The Critique of Pure Reason is a book by the German philosopher Immanuel Kant, in which the author seeks to determine the limits and scope of metaphysics. Also referred to as Kant's "First Critique", it was followed by his Critique of Practical Reason (1788) and Critique of Judgment (1790). In the preface to the first edition, Kant explains that by a "critique of pure reason" he means a critique "of the faculty of reason in general, in respect of all knowledge after which it may strive independently of all experience" and that he aims to decide on "the possibility or impossibility of metaphysics". The term "critique" is properly understood in this context to mean a systematic analysis, rather than finding fault, as the term is often used colloquially.
Transcendental idealism is a philosophical system founded by German philosopher Immanuel Kant in the 18th century. Kant's epistemological program is found throughout his Critique of Pure Reason (1781). By transcendental Kant means that his philosophical approach to knowledge transcends mere consideration of sensory evidence and requires an understanding of the mind's innate modes of processing that sensory evidence.
The Critique of Judgment, also translated as the Critique of the Power of Judgment, is a 1790 book by the German philosopher Immanuel Kant. Sometimes referred to as the "third critique", the Critique of Judgment follows the Critique of Pure Reason (1781) and the Critique of Practical Reason (1788).
Arthur Schopenhauer's aesthetics result from his philosophical doctrine of the primacy of the metaphysical Will as the Kantian thing-in-itself, the ground of life and all being. In his chief work, The World as Will and Representation, Schopenhauer thought that if consciousness or attention is fully engrossed, absorbed, or occupied with the world as painless representations or images, then there is no consciousness of the world as painful willing. Aesthetic contemplation of a work of art provides just such a state—a temporary liberation from the suffering that results from enslavement to the will [need, craving, urge, striving] by becoming a will-less spectator of "the world as representation" [mental image or idea]. Art, according to Schopenhauer, also provides essential knowledge of the world's objects in a way that is more profound than science or everyday experience.
In Kantian philosophy, the thing-in-itself is the status of objects as they are, independent of representation and observation. The concept of the thing-in-itself was introduced by the German philosopher Immanuel Kant, and over the following centuries was met with controversy among later philosophers. It is closely related to Kant's concept of noumena or the objects of inquiry, as opposed to phenomena, its manifestations.
Karl Leonhard Reinhold was an Austrian philosopher who helped to popularise the work of Immanuel Kant in the late 18th century. His "elementary philosophy" (Elementarphilosophie) also influenced German idealism, notably Johann Gottlieb Fichte, as a critical system grounded in a fundamental first principle.
The World as Will and Representation, sometimes translated as The World as Will and Idea, is the central work of the German philosopher Arthur Schopenhauer. The first edition was published in late 1818, with the date 1819 on the title page. A second, two-volume edition appeared in 1844: volume one was an edited version of the 1818 edition, while volume two consisted of commentary on the ideas expounded in volume one. A third expanded edition was published in 1859, the year before Schopenhauer's death. In 1948, an abridged version was edited by Thomas Mann.
Prolegomena to Any Future Metaphysics That Will Be Able to Present Itself as a Science is a book by the German philosopher Immanuel Kant, published in 1783, two years after the first edition of his Critique of Pure Reason. One of Kant's shorter works, it contains a summary of the Critique‘s main conclusions, sometimes by arguments Kant had not used in the Critique. Kant characterizes his more accessible approach here as an "analytic" one, as opposed to the Critique‘s "synthetic" examination of successive faculties of the mind and their principles.
"Critique of the Kantian philosophy" is a criticism Arthur Schopenhauer appended to the first volume of his The World as Will and Representation (1818). He wanted to show Immanuel Kant's errors so that Kant's merits would be appreciated and his achievements furthered.
In Kantian philosophy, a transcendental schema is the procedural rule by which a category or pure, non-empirical concept is associated with a sense impression. A private, subjective intuition is thereby discursively thought to be a representation of an external object. Transcendental schemata are supposedly produced by the imagination in relation to time.
On the Fourfold Root of the Principle of Sufficient Reason is an elaboration on the classical principle of sufficient reason, written by German philosopher Arthur Schopenhauer as his doctoral dissertation in 1813. The principle of sufficient reason is a powerful and controversial philosophical principle stipulating that everything must have a reason or cause. Schopenhauer revised and re-published it in 1847. The work articulated the centerpiece of many of Schopenhauer's arguments, and throughout his later works he consistently refers his readers to it as the necessary beginning point for a full understanding of his further writings.
Gottlob Ernst Schulze was a German philosopher, born in Heldrungen. He was the grandfather of the pioneering biochemist Ernst Schulze.
The following is a list of the major events in the history of German idealism, along with related historical events.
Critique of the Schopenhaurian philosophy is a literary work by Philipp Mainländer appended to Die Philosophie der Erlösung, offering a criticism of the philosophy of Arthur Schopenhauer. Mainländer saw the purification of Schopenhauer's philosophy as the primary task of his life. The criticism had an important impact on Nietzsche's philosophical development.