You see things and you say 'Why?'; but I dream things that never were and I say 'Why not?'

Better to light a candle than to curse the darkness.

An inventor is simply a person who doesn't take his education too seriously. You see, from the time a person is six years old until he graduates from college he has to take three or four examinations a year. If he flunks once, he is out. But an inventor is almost always failing. He tries and fails maybe a thousand times. If he succeeds once then he's in. These two things are diametrically opposite. We often say that the biggest job we have is to teach a newly hired employee how to fail intelligently. We have to train him to experiment over and over and to keep trying and failing until he learns what will work.

Discovery consists of seeing what everybody has seen and thinking what nobody has thought.

A good idea will keep you awake during the morning, but a great idea will keep you awake during the night.

Things don't turn up in this world unless someone turns them up.