Reason is the light, the sun of the brain. It is the compass of the mind, the ever-constant Northern Star, the mountain peak that lifts itself above all clouds.

In my judgment, the Deists were all successfully answered. The god of nature is certainly as bad as the God of the Old Testament. It is only when we discard the idea of a deity, the idea of cruelty or goodness in nature, that we are able ever to bear with patience the ills of life. I feel that I am neither a favorite nor a victim. Nature neither loves nor hates me.

I believe in the religion of reason -- the gospel of this world; in the development of the mind, in the accumulation of intellectual wealth, to the end that man may free himself from superstitious fear, to the end that he may take advantage of the forces of nature to feed and clothe the world.

In making up my mind as to what Mr. Lincoln really believed, I do not take into consideration the evidence of unnamed persons or the contents of anonymous letters; I take the testimony of those who knew and loved him, of those to whom he opened his heart and to whom he spoke in the freedom of perfect confidence.

Arguments cannot be answered with insults. . . . Kindness is strength. . . . Anger blows out the lamp of the mind. In the examination of a great and important question, every one should be serene, slow-pulsed, and calm.

Liberty sustains the same relation to mind that space does to matter.

With their backs to the sunrise they worship the night.