The history of philosophy is not, like the history of the sciences, to be considered as a mere chronological record of discoveries and errors. It is the history of the human spirit in its endeavor to understand itself and its relation to the universe.

If we want clean air and water, we must start by protecting our forests.

我不完美，我也不声称自己是完美的，但我正在努力。

希望存在于任何黑暗中。

人类的选择在于自由和幸福之间，而对于大多数人来说，幸福更好。

一家公司的力量在于其员工。赋予他们力量，就是赋予未来力量。