A witty writer is like a porcupine; his quill makes no distinction between friend and foe.
Politeness is better than logic. You can often persuade when you cannot convince.
It's not what we don't know that prevents us from succeeding; it's what we know that just ain't so that is our greatest obstacle.
Experience increases our wisdom but doesn't reduce our follies.
The thinner the ice, the more anxious is everyone to see whether it will bear.
Ambition is like hunger; it obeys no law but its appetite