Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
You can't have a light without a dark to stick it in.
You cannot be mad at somebody who makes you laugh - it's as simple as that.
He who labors diligently need never despair; for all things are accomplished by diligence and labor.
I cannot believe that the inscrutable universe turns on an axis of suffering; surely the strange beauty of the world must somewhere rest on pure joy!
I used to think that the brain was the most wonderful organ in my body. Then I realized who was telling me this.
A fine quotation is a diamond on the finger of a man of wit, and a pebble in the hand of a fool.