Indeed, not all attacks-especially the bitter and ridiculing kind leveled at Darwin-are offered in good faith, but for practical purposes it is good policy to assume that they are.

Almost no germ is unconditionally dangerous to man; its disease-producing ability depends upon the body's resistance.

To be totally without stress is to be dead.

Unlock your natural drives by doing what you enjoy.

To make a great dream come true, you must first have a great dream.

The healthiest of all human emotions is gratitude.

Leaders are leaders only as long as they have the respect and loyalty of their followers.