快乐有益于身体，但悲伤才能发展心灵的力量。

The most successful businesses are those that put the customer at the center of everything they do.

America has no permanent friends or enemies, only interests.

我看到了，我忘记了；我听到了，我记住了；我做过了，我理解了。

Grain isn't just a commodity; it's the foundation of civilization.

音乐是灵魂的声音。

我不认为人们接受生活没有意义的事实。我认为这让人非常不舒服。

道德戒律是完美的戒律。