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.

The simple truth of our finiteness is that we could, by whatever means, go on interminably only at the price of either losing the past and, therewith, our identity, or living only in the past and therefore without a real present. We cannot seriously wish either and thus not a physical enduring at that price.

Being, in the testimony it gives of itself, informs us not only about what it is but also about what we owe it.

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