Critical comments by students should be taken in a friendly spirit， accumulation of material should not stifle the student’s independence.
对来自学生的批评应该本着友好的精神来接受，学习材料的积累不应该扼杀学生的独立性。
多样性不仅是道德要求，也是商业需求。
生命中最伟大的事情是保持心灵年轻。
一个行为的后果会影响它再次发生的概率。
The only real prison is the one you build for yourself.
The only constant is change, continuing change, inevitable change, that is the dominant factor in society today.
Forests are the lungs of the earth—let's not suffocate them.
I’m not a guy that’s going to let my love for the money down.
不要为了得到世界而失去你的灵魂，智慧比金银更宝贵。