Darwin has done more to change human thought than all the priests who have existed.

There is no necessity for going to the church and hearing the same story forever. Let the minister write what he wishes to say. Let him publish it. If it is worth buying, people will read it. It is hardly fair to get them in a church in the name of duty and there inflict upon them a sermon that under no circumstances they would read...the idea of going fifty-two days in a year to hear anybody on the same subject is absurd.

Intelligence, guided by kindness, is the highest wisdom. . . .

I admit that reason is a small and feeble flame, a flickering torch by stumblers carried in the star-less night, - blown and flared by passion's storm, - and yet, it is the only light. Extinguish that, and nought remains.

Honest investigation is utterly impossible within the pale of any church, for the reason, that if you think the church is right you will not investigate, and if you think it wrong, the church will investigate you.

I would rather live and love where death is king than have eternal life where love is not.

[T]he blossom of benevolence, of charity, is the fairest flower, no matter whether it blooms by the side of a hovel, or bursts from a vine climbing the marble pillar of a palace. I respect no man because he is rich; I hold in contempt no man because he is poor.