我们必须倾听消费者的声音，同时也要教育他们了解乳制品生产的现实。

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.

Nothing exists except atoms and empty space； everything else is opinion.

Friends congratulate me after a quarterly-earnings announcement and say, 'Good job, great quarter.' And I'll say, 'Thank you, but that quarter was baked three years ago.'