So act that your principle of action might safely be made a law for the whole world.
Insanity: doing the same thing over and over again and expecting different results.
Level with your child by being honest. Nobody spots a phony quicker than a child.
You can't just ask customers what they want and then try to give that to them. By the time you get it built, they'll want something new.
We learn something every day, and lots of times it's that what we learned the day before was wrong.
Famous remarks are very seldom quoted correctly.
I feel about airplanes the way I feel about diets. It seems to me they are wonderful things for other people to go on.
I like coincidences. They make me wonder about destiny, and whether free will is an illusion or just a matter of perspective. They let me speculate on the idea of some master plan that, from time to time, we're allowed to see out of the corner of our eye.
When a thing ceases to be a subject of controversy, it ceases to be a subject of interest.