In the depth of the anxiety of having to die is the anxiety of being eternally forgotten.
Paul TillichOut of the element of participation follows the certainty of faith; out of the element of separation follows the doubt in faith. And each is essential for the nature of faith. Sometimes certainty conquers doubt, but it cannot eliminate doubt. The conquered of today may become the conqueror of tomorrow. Sometimes doubt conquers faith, but it still contains faith. Otherwise it would be indifference.
Paul TillichThe vitality that can stand the abyss of meaninglessness is aware of a hidden meaning within the destruction of meaning.
Paul Tillich