Obsolescence is a factor which says that the new thing I bring you is worth more than the unused value of the old thing.

Research is an organized method of trying to find out what you are going to do after you cannot do what you are doing now. It may also be said to be the method of keeping a customer reasonably dissatisfied with what he has. That means constant improvement and change so that the customer will be stimulated to desire the new product enough to buy it to replace the one he has.

99 percent of success is built on failure.

Don't bring anything to me but trouble.

We need to teach the highly educated man that it is not a disgrace to fail and that he must analyze every failure to find its cause. He must learn how to fail intelligently, for failing is one of the greatest arts in the world.

An inventor fails 999 times, and if he succeeds once, he's in. He treats his failures simply as practice shots.

I often say that research is a way of finding out what you are going to do when you can't keep on doing what you are doing now.