有时候，沉默比语言更有力量。
Sometimes, silence is more powerful than words.
Thinking is the hardest work there is, which is probably the reason why so few engage in it.
Knowledge is the highest wealth of humanity, and sharing knowledge is the greatest generosity.
我唯一感到活着的时刻是在作画的时候。
A mathematician is a device for turning coffee into theorems.
我认为在生活中冒险很重要。如果你不冒险，你永远不会成长。