Mathematics is, as it were, a sensuous logic, and relates to philosophy as do the arts, music, and plastic art to poetry.
Publication is to thinking as childbirth is to the first kiss.
Whoever does not philosophize for the sake of philosophy, but rather uses philosophy as a means, is a sophist.
Nothing is more witty and grotesque than ancient mythology and Christianity; that is because they are so mystical.
Irony is a clear consciousness of an eternal agility, of the infinitely abundant chaos.
Duty is for Kant the One and All. Out of the duty of gratitude, he claims, one has to defend and esteem the ancients; and only out of duty has he become a great man.
Form your life humanly, and you have done enough: but you will never reach the height of art and the depth of science without something divine.
How many authors are there among writers? Author means originator.
Wit is an explosion of the compound spirit.
Considered subjectively, philosophy always begins in the middle, like an epic poem.