A good idea is never lost. Even though its originator or possessor may die, it will someday be reborn in the mind of another.

Absorb ideas from every source.

Most of my ideas belonged to other people who never bothered to develop them.

I've realized that most of my best ideas have followed a good night's sleep.

I am long on ideas, but short on time. I expect to live to be only about a hundred.

Keep on the lookout for novel ideas that others have used successfully. Your idea has to be original only in its adaptation to the problem you're working on.