Problems are only opportunities in work clothes.

You're either part of the problem or part of the solution.

The unsolved problems pile up and inevitably produce catastrophes at regular intervals. The Italians always see the next one approaching with a clear eye, but, like sleepers in a nightmare, cannot do anything to ward it off.

Every major industrial society believes it has a serious youth problem.

Our problems are man-made, therefore they may be solved by man. And man can be as big as he wants. No problem of human destiny is beyond human beings.

If olive oil comes from olives, then where does baby oil come from?

The big cities of America are becoming Third World countries.

When I'm working on a problem, I never think about beauty. I think only of how to solve the problem; but when I have finished, if the solution is not beautiful, I know it is wrong.

The Rule of Accuracy: When working toward the solution of a problem, it always helps if you know the answer.

If you find a good solution and become attached to it, the solution may become your next problem.