One must change one's tactics every ten years if one wishes to maintain one's superiority.

No change of circumstances can repair a defect of character.

The only way to make sense out of change is to plunge into it, move with it, and join the dance.

It's the most unhappy people who most fear change.

Progress is a nice word. But change is its motivator. And change has its enemies.

Change alone is eternal, perpetual, immortal.

In order to change the world, you have to get your head together first.

They must often change, who would be constant in happiness or wisdom.

To change ones life: Start immediately. Do it flamboyantly.

Always remember that the future comes one day at a time.