领导力意味着今天做出艰难的决定，为了更美好的明天。

写作是一种自由的行为，一种逃避强加给我们的枷锁的方式。

Mental life is a continuous adjustment to internal and external demands.

My name is Usain Bolt and I don't think limits.

Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.

翻译：处在上位不骄傲，处在下位不忧愁。