The commercial spirit is the spirit of profit, not patriotism; of credit, not honor; of individual gain, not national prosperity; of trade and dickering, not principle.

The spirit of graft and of lawlessness is the American spirit.

It is our knowledge - the things we are sure of - that makes the world go wrong and keeps us from seeing and learning.

I let my boy go and do and say pretty much as he likes, as, and perhaps because, my father kept no string on me.

If we would vote in mass on the more promising ticket, or, if the two are equally bad, would throw out the party that is in, and wait till the next election and then throw out the other party that is in - then, I say, the commercial politician would feel a demand for good government and he would supply it.

The only thing worth having in an earthly existence is a sense of humor.

Keep your baby eyes (which are the eyes of genius) on what we don't know