我们这些幸运的人有责任回馈社会。至于是像我这样边走边捐，还是像沃伦那样先捐一点，然后（死后）再捐很多，这是个人喜好问题。
Those of us who have been fortunate have a duty to give back.Whether one gives a lot as one goes along as I do, or a little and then a lot (when one dies) as Warren does, is a matter of personal preference.
Life is a song, sing it your way.
足够爱自己，才能设定界限。
It is now clear that the hybrids form seeds which have the one or the other of the two differentiating characters.
Innovation in oil extraction must go hand in hand with environmental stewardship.