A liberal knows that the only certainty in this life is change but believes that the change can be directed toward a constructive end.

Advertising is a racket like the movies and the brokerage business. You cannot be honest without admitting that its constructive contribution to humanity is exactly minus zero.

The man who will use his skill and constructive imagination to see how much he can give for a dollar instead of how little he can give for a dollar is bound to succeed.

All married couples should learn the art of battle as they should learn the art of making love. Good battle is objective and honest - never vicious or cruel. Good battle is healthy and constructive and brings to a marriage the principles of equal partnership.

Good management is the art of making problems so interesting and their solutions so constructive that everyone wants to get to work and deal with them.

There's nothing wrong with anger provided you use it constructively.

We are approaching a new age of synthesis. Knowledge cannot be merely a degree or a skill... it demands a broader vision capabilities in critical thinking and logical deduction without which we cannot have constructive progress.