当你向积极性敞开心扉时，你就向可能性敞开了思想。
That's one small step for (a) man, one giant leap for mankind.
The purpose of psychology is to understand how life works.
The best way of learning about anything is by doing.
你必须是自己幸福的最好判断者。
The cistern contains: the fountain overflows.
Technology can help us manage forests, but it will never replace the wisdom of nature.