In no way can sport be considered a luxury object.

这世界是个好地方，值得为它奋斗。

I am more interested in what can be done with the knowledge than in the knowledge itself.

我不后悔做过的事，只后悔有机会时没做的事。

The truth is rarely pure and never simple.

好的系统不能具有较弱的命令语言。