What men need is, as much knowledge as they can assimilate and organize into a basis for action; give them more and it may become injurious. One knows people who are as heavy and stupid from undigested learning .

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

We are prone to see what lies behind our eyes, rather than what apprears before them.

Only one absolute certainty is possible to man, namely that at any given moment the feeling which he has exists.

'Infidel' is a term of reproach, which Christians and Mohammedans, in their modesty, agree to apply to those who differ from them.

My belief is that no human being or society composed of human beings ever did or ever will come to much unless their conduct was governed and guided by the love of some ethical ideal.

There is no absurdity in theology so great that you cannot parallel it by a greater absurdity in Nature.