Sustainability is not just about the environment, it's about people.
【讲解】：人格高尚的人不可用小事情考验他，却可以委以重任；人格低下的人不可委以重任，却可用小事情考验他。
在数学中，你并不理解事物。你只是习惯了它们。
Success is not final, failure is not fatal: it is the courage to continue that counts.
我不喜欢和别人比较，我只尽力做到最好。
The key to successful investing is to buy stocks at a discount to their intrinsic value.
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.