History is the only laboratory we have in which to test the consequences of thought.

History is the only laboratory we have in which to test the consequences of thought.

Radiance belongs to being considered precisely as beautiful: it is, in being, that which catches the eye, or the ear, or the mind, and makes us want to perceive it again

Humans feel at home in a world of things, whose essences and laws it can grasp and define in terms of concepts; but shy and ill at ease in a world of existences, because to exist is an act, not a thing.

Let us ... quietly accept our times, with the firm conviction that just as much good can be done today as at any time in the past, provided only that we have the will and the way to do it.

If our previous analyses are correct, they all point to the same conclusion, that metaphysical adventures are doomed to fail when their authors substitute the fundamental concepts of any particular science for those of metaphysics.

To minds tormented by the divine thirst, it is useless to offer the most certain knowledge of the laws of numbers and the arrangement of the universe