快乐不是一件自我存在的东西,它仅是与其他不快乐事情的一个相对比照,这就是快乐的整个情况。
自信来自于准备充分并精通自己的领域。
效率是以正确的方式做事,而效能则是做正确的事。
The love of a teacher is like drops of dew, which can revive even a withered soul; the love of a teacher is like a warm spring breeze, which can melt even frozen emotions.