Perfect clarity would profit the intellect but damage the will.

Reason is the slow and torturous method by which those who do not know the truth discover it

Education produces natural intuitions, and natural intuitions are erased by education.

If it is an extraordinary blindness to live without investigating what we are, it is a terrible one to live an evil life, while believing in God

Eloquence is a painting of thought; and thus those who, after having painted it, add something more, make a picture instead of a portrait.

No one is offended at not seeing everything; but one does not like to be mistaken, and that perhaps arises from the fact that man naturally cannot see everything, and that naturally he cannot err in the side he looks at, since the perceptions of our senses are always true.

The least movement is of importance to all nature. The entire ocean is affected by a pebble.