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

The product of paper and printed ink, that we commonly call the book, is one of the great visible mediators between spirit and time, and, reflecting zeitgeist, lasts as long as ore and stone.

The farther reason looks the greater is the haze in which it loses itself.

Our reason arises, at the very least, from this twofold lesson of sensuous revelations and human testimonies.

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

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.

Nature is a book, a letter, a fairy tale (in the philosophical sense) or whatever you want to call it.