O Lord, help me to be pure, but not yet.
Nothing is so good for an ignorant man as silence; and if he was sensible of this he would not be ignorant.
There are plenty of good five-cent cigars in the country. The trouble is they cost a quarter. What this country needs is a good five-cent nickel.
I respect faith, but doubt is what gets you an education.
The crux... is that the vast majority of the mass of the universe seems to be missing.
Art is science made clear.
A large income is the best recipe for happiness I ever heard of.