A man's doubts and fears are his worst enemies.

- William Wrigley, Jr.

I market for the same reason a pilot keeps his engines running once he is off the ground.

- William Wrigley, Jr.

A man’s doubts and fears are his worst enemies. He can go ahead and do anything as long as he believed in himself.

- William Wrigley, Jr.

Advertising is our printed salesman. It may not be pretty, but it has to be true.

- William Wrigley, Jr.

Success is not easy. But it is worth the price.

- William Wrigley, Jr.

Nothing is so much fun as business. I do not expect to do anything but work as long as I can stand up.

- William Wrigley, Jr.

An island Utopia in a modern, busy, everyday world. A land where there are neither rich nor poor. A heaven on earth - without a fence around it.

- William Wrigley, Jr.

Excellent value relative to the week investment of time....To my mind, this is the definitive course on leadership.

- William Wrigley, Jr.

Make a Fair Product for a Fair Price, then Tell the World.

- William Wrigley, Jr.