Paul Tillich

"Hope is not the same as optimism; it is an act of the will."

"The ethical is grounded in the ontological."

"Power is the structure of being; love is the dynamics of being."

"Heteronomy in religion is as destructive as autonomy without thetonomy."

"The Protestant principle is the judgment upon human claims to ultimacy."

"The secular is the arena of the sacred."

"Being finite, we continually face nonbeing."

"Time is the dimension of history; history is filled with kronos moments."

"The symbol participates in the reality it represents."

"Religion is the substance of culture and culture is the form of religion."

"The demonic is what must be fought continuously."

"Universality without particularity is empty; particularity without universality is blind."

"Being present to oneself is the fundamental human possibility."

"The person is always in relationship."

"The demonic cannot be eliminated but can be transformed."

"Reason is the structure of reality and the structure of the mind."

"The question of being is the most fundamental question."

"Estrangement is universal; grace is universal."

"Participation is reunion with the ground of being."

"Being is the answer to the question implied in nonbeing."

"The future is not yet determined; human freedom co-creates it."

"Art opens up the dimension of depth that scientific analysis cannot reach."

"The tragedy of existence is that we cannot escape ambiguity."

"Self-actualization is the becoming of what one essentially is."

"The demonic produces estrangement; grace produces reunion."

"Ultimate reality is beyond categories but can be approached through symbols."

"The ground of being is both transcendent and immanent."

"Unconditional love is the image of ultimate reality in human experience."

"Participation in being is participation in the divine."

"The self must die to itself to be reborn in reunion with being."