心是脆弱的东西，容易破碎，但也有巨大的力量。
爱情就像沙漏：当心空了，头脑就开始填满。
在观察的领域里，机遇只偏爱那种有准备的头脑。
The past is a shadow that follows us, always present, always influencing our steps.
If you're going to try, go all the way. Otherwise, don't even start.
Memory is a responsibility, not a burden.
Critical comments by students should be taken in a friendly spirit， accumulation of material should not stifle the student’s independence.