素描就是诚实。没有作弊的可能。画得好就是好，不好就是不好。
Drawing is honesty. There is no possibility of cheating. It is either good or bad.
每一种真理都需要经过三个阶段：首先被嘲笑，然后被激烈反对，最后被视为自明之理。
In the information age, knowledge is the only sustainable competitive advantage.
If you don't design your own life plan, chances are you'll fall into someone else's plan. And guess what they have planned for you? Not much.
学无止境的人比无所不知的人做得更好。
人的仁慈从未削弱自由者的毅力或软化他们。一个国家不必变得残酷就可以坚强。