Happiness is secured through virtue； it is a good attained by man's own will.

成功的收获始于倾听前人的智慧。

The principles of conditioning apply equally to all species.

当宽恕他人时，对方可能不会注意到，但你会被治愈。宽恕不是我们为他人做的事；而是给自己的礼物。