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

My advice to any young person at the beginning of their career is to try to look for the mere outlines of big things with their fresh, untrained and unprejudiced mind.

Unlock your natural drives by doing what you enjoy.

Mental tensions, frustrations, insecurity, aimlessness are among the most damaging stressors, and psychosomatic studies have shown how often they cause migraine headache, peptic ulcers, heart attacks, hypertension, mental disease, suicide, or just hopeless unhappiness.

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

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

What makes me so certain that the natural human lifespan is far in excess of the actual one is this. Among all my autopsies (and I have performed over 1000), I have never seen a person who died of old age. In fact, I do not think that anyone has ever died of old age yet. We invariably die because one vital part has worn out too early in proportion to the rest of the body.