Religion is the state of being grasped by an ultimate concern, a concern which qualifies all other concerns as preliminary and which itself contains the answer to the question of a meaning of our life.
Paul TillichSometimes I think it is my mission to bring faith to the faithless, and doubt to the faithful.
Paul TillichThere is faith in every serious doubt, namely, the faith in the truth as such, even if the only truth we can express is our lack of truth.
Paul Tillich