Never must the existence or the essence of man as a whole be made a stake in the hazards of action.

Unlike the interference of ordinary interest, power, or prejudice, which touches philosophy only at its outskirts and becomes at most a matter for philosophical tactics, the claim of revelation to the highest truth touches philosophy at its core and must affect its whole strategy.

Our duties and responsibilities as human beings must be shown to be so incontrovertible that even atheists must recognize them. There are ultimate taboos.

The latest revelation - from no Mount Sinai, Sermon on the Mount or Bo tree - is the outcry of mute things themselves that we must heed by curbing our powers over creation, lest we perish together on a wasteland of what that creation once was.

If man was the relative of animals, then animals were the relatives of man, and in degrees bearers of that inwardness of which man, the most advanced of their kin, is conscious in himself.

Modern theory is about objects lower than man; even stars, being common things, are lower than man.