People should think things out fresh and not just accept conventional terms and the conventional way of doing things.

How often I found where I should be going only by setting out for somewhere else.

Parents are usually more careful to bestow knowledge on their children rather than virtue, the art of speaking well rather than doing well; but their manners should be of the greatest concern.

Sometimes I think we're alone. Sometimes I think we're not. In either case, the thought is staggering.

I'm not a genius. I'm just a tremendous bundle of experience.

I just invent, then wait until man comes around to needing what I've invented.