If you want to live a long life, focus on making contributions .
Stress, in addition to being itself, was also the cause of itself, and the result of itself.
To make a great dream come true, you must first have a great dream.
Even after the greatest defeats, the depressing thought of being a failure is best combated by taking stock of all your past achievements.
The healthiest of all human emotions is gratitude.
Almost no germ is unconditionally dangerous to man; its disease-producing ability depends upon the body's resistance.