The true scientist never loses the faculty of amazement.
Even after the greatest defeats, the depressing thought of being a failure is best combated by taking stock of all your past achievements.
Leaders are leaders only as long as they have the respect and loyalty of their followers.
Gratitude conserves the vital energies of a person more than any other attitude tested.
Stress is the spice of life.
Man should not try to avoid stress any more than he would shun food, love or exercise