The heart of a mother is a deep abyss at the bottom of which you will always find forgiveness.

The worst of all deceptions is self-deception.

"Positive psychology is not a spectator sport."

【大意】干枯的竹子能生火，但不去钻它就不会燃烧；地下藏有泉源，但不去挖掘就流不出泉水来。