“Doubt is not the opposite of faith; it is an element of faith.”

— Paul Tillich, Systematic Theology, 1951–63, Vol. 2, p. 116

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.”

“When in doubt, tell the truth.”

“I never "worry" about action, but only about inaction.”

“The superior man has neither anxiety nor fear.”

“Nothing is so much to be feared as fear.”

“You really only know when you know little. Doubt grows with knowledge.”

“Let those flatter who fear; it is not an American art.”