Agnosticism simply means that a man shall not say he knows or believes that for which he has no grounds for professing to believe

For every man the world is as fresh as it was at the first day, and as full of untold novelties for him who has the eyes to see them

The only medicine for suffering, crime, and all other woes of mankind, is wisdom. Teach a man to read and write, and you have put into his hands the great keys of the wisdom box. But it is quite another thing to open the box.

The only question which any wise man can ask himself, and which any honest man will ask himself, is whether a doctrine is true or false.

The man of science has learned to believe in justification, not by faith, but by verification.

I take it that the good of mankind means the attainment, by every man, of all the happiness which he can enjoy without diminishing the happiness of his fellow men.