He who has so little knowledge of human nature as to seek happiness by changing anything but his own disposition will waste his life in fruitless efforts.

It is a useless life that is not consecrated to a great ideal. It is like a stone wasted on the field without becoming a part of any edifice.

Take time for all things: great haste makes great waste.

Every year the Federal Government wastes billions of dollars as a result of overpayments of government agencies misuse of government credit cards abuse of the Federal entitlement programs and the mismanagement of the Federal bureaucracy.

I believe that all government is evil and that trying to improve it is largely a waste of time.

Waste no more time arguing about what a good man should be. Be one.

Drugs are a waste of time. They destroy your memory and your self-respect and everything that goes along with with your self-esteem. They're no good at all.

Suffering passes while love is eternal. That's a gift that you have received from God. Don't waste it.

Live so you do not have to look back and say: 'God how I have wasted my life.'

Customers don't know what they want. There's plenty of good psychology research that shows that people are not able to accurately predict how they would behave in the future. So asking them 'Would you buy my product if it had these three features?' or 'How would you react if we changed our product this way?' is a waste of time. They don't know.