The Yellow Emperor's Canon of Internal Medicine, 2500

The Yellow Emperor's Canon of Internal Medicine, 2500 B.C.
When man is serene, the pulse of the heart flows and connects, just as pearls are joined together or like a string of red jade, then one can talk about a healthy heart.

"I am sorry I have not learned to play cards. It is very useful in life. It generates kindness and consolidates society." - Samuel Johnson