The universe is not a stingy giver. If you ask it for a kingdom, it will give you a kingdom; but if you only ask for a handful of grain, it will give you — a handful of grain.

We have not the reverence for what is green and growing that we ought to have. A man's relation to Nature must be humble, as his relation to God. He must not think himself greater than the grass.

The universe is not outside of you. Look inside yourself; everything that you want, you already are.

Nature is not a place to visit. It is home. And within that home there are no sermons preached, no creeds recited; only the ancient, wordless liturgy of wind and stone.

The notion that science and spirituality are forever at war is the invention of twits who understand neither.

I conceive a man's body as a sort of fiery mist enmeshed in the cage of the skeleton, and mostly resulting from the circulation of the blood.

We live in succession, in division, in parts, in particles. Meantime within man is the soul of the whole, the wise silence, the universal beauty, to which every part and particle is equally related; the eternal One.

We are all serving a life sentence in the dungeon of self, said the Trappist abbot; we must learn to like the company.