They tell us that suicide is the greatest piece of cowardice... that suicide is wrong; when it is quite obvious that there is nothing in the world to which every man has a more unassailable title than to his own life and person.
Descartes is rightly regarded as the father of modern philosophy primarily and generally because he helped the faculty of reason to stand on its own feet by teaching men to use their brains
in place whereof the Bible, on the one hand, and Aristotle, on the other, had previously served.
A man's knowledge may be said to be mature, in other words, when it has reached the most complete state of perfection to which he, as an individual, is capable of bringing it, when an exact correspondence is established between the whole of his abstract ideas and the things he has actually perceived for himself. His will mean that each of his abstract ideas rests, directly or indirectly, upon a basis of observation, which alone endows it with any real value; and also that he is able to place every observation he makes under the right abstract idea which belongs to it.
Wir tappen im Labyrinth unsers Lebenswandels und im Dunkel unserer Forschungen umher: helleAugenblicke erleuchten dabei wie Blitze unsernWeg. We grope about in the labyrinth of our life and in the obscurity of our investigations; bright moments illuminate our path like flashes of lightning.
Great minds are related to the brief span of time during which they live as great buildings are to a little square in which they stand: you cannot see them in all their magnitude because you are standing too close to them.
For what is modesty but hypocritical humility, by means of which, in a world swelling with vile envy, a man seeks to beg pardon for his excellences and merits from those who have none? For
whoever attributes no merit to himself because he really has none is not modest, but merely honest.
That human life must be some kind of mistake is sufficiently proved by the simple observation that man is a compound of needs which are hard to satisfy; that their satisfaction achieves nothing but a painless condition in which he is only given over to boredom . . .