Those who cannot recall the past are condemned to repeat it.
It is a great advantage for a system of philosophy to be substantially true.
Fanaticism consists of redoubling your effort when you have forgotten your aim.
The difficult can be done immediately. The impossible takes a little longer.
Slang is language that takes off its coat, spits on its hands, and goes to work.
What garlic is to salad, insanity is to art.
The fundamental cause of trouble in the world is that the stupid are cocksure while the intelligent are full of doubt.
Even when the experts all agree, they may well be mistaken.
The follies a person regrets most in life are those he didn't commit when he had the opportunity.
The most successful politician says what everybody is thinking most often and in the loudest voice.