We are sinful not merely because we have eaten of the tree of knowledge, but also because we have not eaten of the tree of life.

We are sinful not only because we have eaten of the Tree of Knowledge, but also because we have not yet eaten of the Tree of Life. The state in which we are is sinful, irrespective of guilt.

We are separated from God on two sides; the Fall separates us from Him, the Tree of Life separates Him from us.

All knowledge, the totality of all questions and all answers is contained in the dog

How pathetically scanty my self-knowledge is compared with, say, my knowledge of my room. There is no such thing as observation of the inner world, as there is of the outer world.

A stair not worn hollow by footsteps is, regarded from its own point of view, only a boring something made of wood.