Pollution is nothing but the resources we are not harvesting. We allow them to disperse because we've been ignorant of their value.

Controlled time is our true wealth.

Dictators never invent their own opportunities.

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

Our power is in our ability to decide.

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.