We rise by lifting others.
The greatest test of courage on earth is to bear defeat without losing heart.
Mental slavery is mental death, and every man who has given up his intellectual freedom is the living coffin of his dead soul.
Religion can never reform mankind because religion is slavery.
Strange but true: those who have loved God most have loved men least.
Only a few years ago there was no person too ignorant to successfully answer Charles Darwin; and the more ignorant he was the more cheerfully he undertook the task.
The God of Hell should be held in loathing, contempt and scorn. A God who threatens eternal pain should be hated, not loved – cursed, not worshiped. A heaven presided over by such a God must be below the lowest hell.
I do not see how it is possible for an intelligent human being to conclude that the Song of Solomon is the work of God, and that the tragedy of Lear was the work of an uninspired man.
The hands that help are better far than lips that pray.
I have had some trouble in regarding evil as having been intended by infinite Goodness.
Let us account for all we see by the facts we know. If there are things for which we cannot account, let us wait for light. To account for anything by supernatural agencies is, in fact to say that we do not know. Theology is not what we know about God, but what we do not know about Nature.
Belief is not a matter of choice, but of conviction.