Our search for such [moral] principles can start with . . . the unconditional imperative — Paul Tillich
Morality [or ethics] is not a subject; it is a life put to the test in dozens of moments. — Paul Tillich
In the courageous standing of uncertainty, faith shows most visibly its dynamic character. — Paul Tillich
Culture (science) is the form of religion; Religion is the substance of culture (science). — Paul Tillich
Mystical identification transcends the aristocratic virtue of courageous self-sacrifice. It is self- — Paul Tillich