“In all existential knowledge both subject and object are transformed by the very act of knowing.”

— Paul Tillich, The Courage to Be, 1952, p. 124

About Paul Tillich

1886 – 1965

German-American theologian and philosopher, author of "The Courage to Be" (1952).

“Anxiety strives to become fear, because fear can be met by courage.”

“Faith comprises both itself and the doubt of itself.”

“Man is estranged from what he essentially is.”

“He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.”

Attribution note: Source disputed or unverified.

“Knowing yourself is the beginning of all wisdom.”

Attribution note: Source disputed or unverified.

“Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.”

“He who knows others is wise; he who knows himself is enlightened.”

Attribution note: Source disputed or unverified.

“The man who asks a question is a fool for a minute, the man who does not ask is a fool for life.”

“The truth is rarely pure and never simple.”