When we are out of sympathy with the young, then I think our work in this world is over

For the greatest fool and rascal in creation there is yet a worse condition; and that is, not to know it, but to think himself a respectable man.

It needs brains to be a real fool.

There are thousands willing to do great things for one willing to do a small thing.

Not even nothingness preceded life. Nothingness owes its very idea to existence.

A man must learn to love his children, not because they are his, but because they are children, else his love will be scarcely a better thing at last than the party-spirit of the faithful politician.

I only know when I don't know a thing. My uncle has taught me that wisdom lies in that.