The world hates change, yet it is the only thing that has brought progress.

Our imagination is the only limit to what we can hope to have in the future.

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 on trying and failing until he learns what will work.

This problem, too, will look simple after it is solved.

Do not bring me your successes; they weaken me. Bring me your problems; they strengthen me.

It is not a disgrace to fail. Failing is one of the greatest arts in the world.

I could do nothing without my problems; they toughen my mind. In fact, I tell my assistants not to bring me their successes for they weaken me, but rather to bring me their problems, for they strengthen me.