成功不是快乐的关键。快乐才是成功的关键。如果你热爱你所做的事，你就会成功。

If you have any doubt at all about being able to carry a load in one trip， do yourself a huge favor and make two trips.

The rule of recognition exists as a social fact.

衡量一家公司成功的真正标准是其对社会的影响，而不仅仅是其利润。

你不必把所有事情都弄清楚才能前进。