Leibnitz Quotes
All the men who are now called discoverers, in every matter ruled by thought, have been men versed in the minds of their predecessors, and learned in what had been before them. There is not one exception. I do not say that every man has made direct acquantance with the whole of his mental ancestry... But... it is remarkable how many of the greatest names in all departments of knowledge have been real antiquaries in their several subjects.
I may cite among those... in science, Aristotle, Plato, Ptolemy, Euclid, Archimedes, Roger Bacon, Copernicus, Francis Bacon, Ramus, Tycho Brahe, Galileo, Napier, Descartes, Leibnitz, Newton, Locke.
Augustus De Morgan
Two centuries ago Leibnitz invented a calculating machine which embodied most of the essential features of recent keyboard devices, but it could not then come into use. The economics of the situation were against it: the labor involved in constructing it, before the days of mass production, exceeded the labor to be saved by its use, since all it could accomplish could be duplicated by sufficient use of pencil and paper. Moreover, it would have been subject to frequent breakdown, so that it could not have been depended upon; for at that time and long after, complexity and unreliability were synonymous.
Vannevar Bush
However, his contemporary, Leibnitz, the father of the German enlightenment, who created an optimistic world-picture, always remained only a philosopher for philosophers. Even Immanuel Kant, although always famous, was never popular. In his own fatherland he was all but forgotten for most of the nineteenth century until revived by Hermann Cohen and his school. Spinoza, however, was never exhumed because he was never buried. Kant, because of his exclusive intellectuality, has influenced only his students, while Spinoza, because of his emotional appeal, has ruled even those who have never heard his name.
Baruch Spinoza
It is true that God is necessity, or, as we may also put it, that he is the absolute Thing: he is however no less the absolute Person. That he is the absolute Person however is a point which the philosophy of Spinoza never reached: and on that side it falls short of the true notion of God which forms the content of religious consciousness in Christianity. Spinoza was by descent a Jew; and it is upon the whole the Oriental way of seeing things, according to which the nature of the finite world seems frail and transient, that has found its intellectual expression in his system. This Oriental view of the unity of substance certainly gives the basis for all real further development. Still it is not the final idea. It is marked by the absence of the principle of the Western world, the principle of individuality, which first appeared under a philosophic shape, contemporaneously with Spinoza, in the Monadology of Leibnitz.
Baruch Spinoza
Even when, after centuries of license, the Church reformed its discipline, and, to prove it, burned Giordano Bruno in 1600, besides condemning Galileo in 1630 - as science goes on repeating to us every day - it condemned anarchists, not atheists. None of the astronomers were irreligious men; all of them made a point of magnifying God through his works; a form of science which did their religion no credit. Neither Galileo nor Kepler, neither Spinoza nor Descartes, neither Leibnitz nor Newton, any more than Constantine the Great - if so much - doubted Unity. The utmost range of their heresies reached only its personality.
Henry Adams
When Sir A. Fountaine was at Berlin with Leibnitz in 1701, and at supper with the Queen of Prussia, she asked Leibnitz his opinion of Sir Isaac Newton. Leibnitz said that taking mathematicians from the beginning of the world to the time when Sir Isaac lived, what he had done was much the better half; and added that he had consulted all the learned in Europe upon some difficult points without having any satisfaction, and that when he applied to Sir Isaac, he wrote him in answer by the first post, to do so and so, and then he would find it.
Gottfried Leibniz
Leibnitz, the great mathematician, published his 'Protogaea' in 1680. He imagined this planet to have been originally a burning luminous mass, and that ever since its creation it has been undergoing gradual refrigeration. Nearly all the matter of the earth was at first encompassed by fire. When the outer crust had at length cooled down sufficiently to allow the vapors to be condensed, they fell and formed a universal ocean, investing the globe, and covering the loftiest mountains. Further consolidation produced rents, vacuities, and subterranean caverns, and the ocean, rushing in to fill them, was gradually lowered. The principal feature of this theory, the gradual diminution of the original heat, and of an ancient universal ocean, were adopted by Buffon and De Luc, and entered under different modifications, into a great number of succeeding systems.
Charles Lyell
The more we devote ourselves to observing animals and their behaviour, the more we love them, on seeing how gready they care for their young; in such a context, we cannot even contemplate cruelty to a wolf. Leibnitz put the grub he had been observing back on the tree with its leaf, lest he should be guilty of doing any harm to it. It upsets a man to destroy such a creature for no reason, and this tenderness is subsequendy transferred to man.
Immanuel Kant
If there were only some mechanism (like Seurat's proposed system of painting, or the projected Universal Algebra that Gödel believes Leibnitz to have perfected and mislaid) for reasonably and systematically converting into poetry what we see and feel and are! When one reads the verse of people who cannot write poems - people who sometimes have more intelligence, sensibility, and moral discrimination than most of the poets - it is hard not to regard the Muse as a sort of fairy godmother who says to the poet, after her colleagues have showered on him the most disconcerting and ambiguous gifts, "Well, never mind. You're still the only one that can write poetry."
Randall Jarrell
Schelling calls Spinoza "the first philosopher who found the concepts whereby all the following centuries have grasped and fixed the two extremities of our knowing mind." For Lessing and Herder philosophy and Spinozism were identical; and the same statement was also made by Hegel, the most comprehensive and systematic, as well as the most independent and firm, among the German philosophers, who did not attempt, like Leibnitz, Fichte or Schelling, to reshape again and again his original-philosophy. And Hegel also said, "either you have Spinozism or you have no philosophy!"
Baruch Spinoza
...He [Lessing] even felt that the highest compliment he could confer on his friend Moses Mendelssohn, whom he greatly admired, was to call him a "second Spinoza." Mendelssohn, one of the fathers of the modern German enlightenment, was an adherent of Leibnitz. As such he could not be a follower of Spinoza, although he, too, admired his personality. Furthermore, he failed to understand Spinoza, for he could never free himself from Bayle's presentation of Spinoza's doctrine. Nevertheless, this very Mendelssohn, by his controversy with Jacobi about Lessing's relationship to Spinoza, was instrumental in making the latter a potent force in German letters. It is interesting to observe that even those thinkers who dedicated their lives to the cause of anti-Spinozism paid the highest tribute to his personality.
Baruch Spinoza
The great invention... Descartes gave to the world, the analytical diagram, ...gives at a glance a graphical picture of the law governing a phenomenon, or of the correlation which exists between dependent events, or of the changes which a situation undergoes in the course of time. ...the invention of Descartes not only created the important discipline of analytic geometry, but it gave Newton, Leibnitz, Euler, and the Bernoullis that weapon for the lack of which Archimedes and later Fermat had to leave inarticulate their profound and far-reaching thoughts.
René Descartes