“Even a mistake may turn out to be the one thing necesary to a worthwhile achievement".”

“The only real mistake is the one from which we learn nothing.”

“My best friend is the one who brings out the best in me.”

“The whole secret of a successful life is to find out what is one's destiny to do, and then do it.”

“You say I started out with practically nothing, but that isn't correct. We all start with all there is, it's how we use it that makes things possible.”

“If there is any one secret of success, it lies in the ability to get the other person's point of view and see things from that person's angle as well as from your own.”

“I invented nothing new. I simply assembled the discoveries of other men behind whom were centuries of work. Had I worked fifty or ten or even five years before, I would have failed. So it is with every new thing. Progress happens when all the factors that make for it are ready, and then it is inevitable. To teach that a comparatively few men are responsible for the greatest forward steps of mankind is the worst sort of nonsense.”