Home > Topic > Leibniz

Leibniz  QUOTES

1 " In Leibniz we can already find the striking observation that *cogitatur ergo est* is no less evident than *cogito ergo sum*. Naturally, *est* here does not mean existence or reality but being of whatever kind and form, including even ideal being, fictive being, conscious-being [*Bewusst-Sein*], etc. However, we must go even beyond this thesis of Leibniz. The correlate of the act of *cogitatio* is not, as Leibniz said, being simply, but only that type of being we call " objectifiable being." Objectifiable being must be sharply distinguished from the non-objectifiable being of an act, that is, from a kind of entity which possesses its mode of being only in performance [*Vollzug*], namely, in the performance of the act. " Being," in the widest sense of the word, belongs indeed to the being-of-an-act [*Akt-Sein*], to *cogitare*, which does not in turn require another *cogitare*. Similarly, we are only vaguely " aware" of our drives [*Triebleben*] without having them as objects as we do those elements of consciousness which lend themselves to imagery. For this reason the first order of evidence is expressed in the principle, " There is something," or, better, " There is not nothing." Here we understand by the word " nothing" the negative state of affairs of not-being in general rather than " not being something" or " not being actual." A second principle of evidence is that everything which " is" in any sense of the possible kinds of being can be analyzed in terms of its character or essence (not yet separating its contingent characteristics from its genuine essence) and its existence in some mode. With these two principles we are in a position to define precisely the concept of knowledge, a concept which is prior even to that of consciousness. Knowledge is an ultimate, unique, and underivable ontological relationship between two beings. I mean by this that any being A " knows" any being B whenever A participates in the essence or nature of B, without B's suffering any alteration in its nature or essence because of A's participation in it. Such participation is possible both in the case of objectifiable being and in that of active [*akthaften*] being, for instance, when we repeat the performance of the act; or in feelings, when we relive the feelings, etc. The concept of participation is, therefore, wider than that of objective knowledge, that is, knowledge of objectifiable being. The participation which is in question here can never be dissolved into a causal relation, or one of sameness and similarity, or one of sign and signification; it is an ultimate and essential relation of a peculiar type. We say further of B that, when A participates in B and B belongs to the order of objectifiable being, B becomes an " objective being" [" *Gegenstand" -sein*]. Confusing the being of an object [*Sein des Gegenstandes*] with the fact that an entity is an object [*Gegenstandssein eines Seienden*] is one of the fundamental errors of idealism. On the contrary, the being of B, in the sense of a mode of reality, never enters into the knowledge-relation. The being of B can never stand to the real bearer of knowledge in any but a causal relation. The *ens reale* remains, therefore, outside of every possible knowledge-relation, not only the human but also the divine, if such exists. Both the concept of the " intentional act" and that of the " subject" of this act, an " I" which performs acts, are logically posterior. The intentional act is to be defined as the process of becoming [*Werdesein*] in A through which A participates in the nature or essence of B, or that through which this participation is produced. To this extent the Scholastics were right to begin with the distinction between an *ens intentionale* and an *ens reale*, and then, on the basis of this distinction, to distinguish between an intentional act and a real relation between the knower and the being of the thing known." ―from_Idealism and Realism_ "

2 " Reading list (1972 edition)[edit]
1. Homer – Iliad, Odyssey
2. The Old Testament
3. Aeschylus – Tragedies
4. Sophocles – Tragedies
5. Herodotus – Histories
6. Euripides – Tragedies
7. Thucydides – History of the Peloponnesian War
8. Hippocrates – Medical Writings
9. Aristophanes – Comedies
10. Plato – Dialogues
11. Aristotle – Works
12. Epicurus – Letter to Herodotus; Letter to Menoecus
13. Euclid – Elements
14. Archimedes – Works
15. Apollonius of Perga – Conic Sections
16. Cicero – Works
17. Lucretius – On the Nature of Things
18. Virgil – Works
19. Horace – Works
20. Livy – History of Rome
21. Ovid – Works
22. Plutarch – Parallel Lives; Moralia
23. Tacitus – Histories; Annals; Agricola Germania
24. Nicomachus of Gerasa – Introduction to Arithmetic
25. Epictetus – Discourses; Encheiridion
26. Ptolemy – Almagest
27. Lucian – Works
28. Marcus Aurelius – Meditations
29. Galen – On the Natural Faculties
30. The New Testament
31. Plotinus – The Enneads
32. St. Augustine – On the Teacher; Confessions; City of God; On Christian Doctrine
33. The Song of Roland
34. The Nibelungenlied
35. The Saga of Burnt Njál
36. St. Thomas Aquinas – Summa Theologica
37. Dante Alighieri – The Divine Comedy;The New Life; On Monarchy
38. Geoffrey Chaucer – Troilus and Criseyde; The Canterbury Tales
39. Leonardo da Vinci – Notebooks
40. Niccolò Machiavelli – The Prince; Discourses on the First Ten Books of Livy
41. Desiderius Erasmus – The Praise of Folly
42. Nicolaus Copernicus – On the Revolutions of the Heavenly Spheres
43. Thomas More – Utopia
44. Martin Luther – Table Talk; Three Treatises
45. François Rabelais – Gargantua and Pantagruel
46. John Calvin – Institutes of the Christian Religion
47. Michel de Montaigne – Essays
48. William Gilbert – On the Loadstone and Magnetic Bodies
49. Miguel de Cervantes – Don Quixote
50. Edmund Spenser – Prothalamion; The Faerie Queene
51. Francis Bacon – Essays; Advancement of Learning; Novum Organum, New Atlantis
52. William Shakespeare – Poetry and Plays
53. Galileo Galilei – Starry Messenger; Dialogues Concerning Two New Sciences
54. Johannes Kepler – Epitome of Copernican Astronomy; Concerning the Harmonies of the World
55. William Harvey – On the Motion of the Heart and Blood in Animals; On the Circulation of the Blood; On the Generation of Animals
56. Thomas Hobbes – Leviathan
57. René Descartes – Rules for the Direction of the Mind; Discourse on the Method; Geometry; Meditations on First Philosophy
58. John Milton – Works
59. Molière – Comedies
60. Blaise Pascal – The Provincial Letters; Pensees; Scientific Treatises
61. Christiaan Huygens – Treatise on Light
62. Benedict de Spinoza – Ethics
63. John Locke – Letter Concerning Toleration; Of Civil Government; Essay Concerning Human Understanding;Thoughts Concerning Education
64. Jean Baptiste Racine – Tragedies
65. Isaac Newton – Mathematical Principles of Natural Philosophy; Optics
66. Gottfried Wilhelm Leibniz – Discourse on Metaphysics; New Essays Concerning Human Understanding;Monadology
67. Daniel Defoe – Robinson Crusoe
68. Jonathan Swift – A Tale of a Tub; Journal to Stella; Gulliver's Travels; A Modest Proposal
69. William Congreve – The Way of the World
70. George Berkeley – Principles of Human Knowledge
71. Alexander Pope – Essay on Criticism; Rape of the Lock; Essay on Man
72. Charles de Secondat, baron de Montesquieu – Persian Letters; Spirit of Laws
73. Voltaire – Letters on the English; Candide; Philosophical Dictionary
74. Henry Fielding – Joseph Andrews; Tom Jones
75. Samuel Johnson – The Vanity of Human Wishes; Dictionary; Rasselas; The Lives of the Poets "

Mortimer J. Adler , How to Read a Book: The Classic Guide to Intelligent Reading