地球赐予我们煤炭；我们的责任是回馈管理。
The earth gives us coal; our duty is to give back stewardship.
The motor of our ingenuity is the question ‘Does it have to be like this?’, from which arise political reforms, scientific developments, improved relationships, better books.
Happiness resides not in possessions and not in gold； the feeling of happiness dwells in the soul.
真正的投资者能够利用市场反复和不可避免的错误。
预测未来的最好方法就是创造未来。