A habit of debt is very injurious to the memory.
A small debt produces a debtor; a large one, an enemy.
If a little knowledge is dangerous, where is the person who has so much as to be out of danger?
This country has come to feel the same when Congress is in session as when the baby gets hold of a hammer.
There's nothing so comfortable as a small bankroll; a big one is always in danger.
The most dangerous thing in the world is to try to leap a chasm in two jumps.
When a cynic smells flowers, he looks around for a coffin.
A cynic knows the price of everything and the value of nothing.
Take the course opposite to custom and you will almost always do well.
The important thing is not to stop questioning. Curiosity has its own reason for existing. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery every day. Never lose a holy curiosity.