The most powerful tool for change is knowledge, rigorously pursued and widely shared.
生存还是毁灭。这其实不是一个问题。
Patience and tenacity of purpose are worth more than twice their weight of cleverness.  
我们生来孤独,死时孤独,尽管有浪漫杂志的渲染,终有一天回望人生时会发现,即便有人相伴,我们始终孤独。
"The serve is the most important shot in tennis."