人一般而言，天生的能力对他影响不大 – 他如何造就自己决定他的人生。
A man, as a general rule, owes very little to what he is born with – a man is what he makes of himself.
The best mathematics is timeless.
在绘画中，手必须跟随眼睛，而眼睛必须跟随灵魂。