The basic word I-Thou can be spoken only with one's whole being. The concentration and fusion into a whole being can never be accomplished by me, can never be accomplished without me. I require a Thou to become; becoming I, I say Thou.

A human being becomes whole not in virtue of a relation to himself [only] but rather in virtue of an authentic relation to another human being(s).

God is the "mysterium tremendum," that appears and overthrows, but he is also the mystery of the self-evident, nearer to me than my I.

The perpetual enemy of faith in the true God is not atheism (the claim that there is no God), but rather Gnosticism (the claim that God is known).

To be old can be glorious if one has not unlearned how to begin.

God dwells wherever man lets Him in.

There is something that can be found in one place. It is a great treasure which may be called the fulfillment of existence. The place where this treasure can be found is the place where one stands