The best way to cheer yourself up is to try to cheer somebody else up.

译文：与别人不去争长短，常常懂得知足，心情就会平静没有忧愁担心。赏析：不与人争得失，惟求己有知能。事事争个输赢，比个高低，烦恼就会很多，灾难也就更多。如果放低姿态，懂得知足常乐，事情自然就会水到渠成。

释义：推究古代的事例来验证今天的情况，从而避免困惑；先揣度事情的始末，后仔细考虑，从而应对突发情况。这是对借鉴历史、谨慎行事的智慧的强调。 

Collaboration is key to tackling the world's energy challenges.

The only person you should try to be better than is the person you were yesterday.