If only I was as eloquent as Demosthenes, I would have to do no more than repeat a single word three times.

Everything is vain and tortures the spirit instead of calming and satisfying it.

Physics is nothing but the ABC's. Nature is an equation with an unknown, a Hebrew word which is written only with consonants to which reason has to add the dots.

A writer who is in a hurry to be understood today or tomorrow runs the danger of being misunderstood the day after tomorrow.

Everything the human being heard from the beginning, saw with its eyes, looked upon and touched with its hands was a living word; for God was the word.

Being, belief and reason are pure relations, which cannot be dealt with absolutely, and are not things but pure scholastic concepts, signs for understanding, not for worshipping, aids to awaken our attention, not to fetter it.

Indeed, if a chief question does remain: how is the power to think possible? - The power to think right and left, before and without, with and above experience? then it does not take a deduction to prove the genealogical priority of language.