你无法总是控制外面发生的事情，但你总能控制内心发生的事情。
永远不要放弃你的梦想，无论它们看起来多么不可能。
Free competition is the great means of increasing the efficiency and prosperity of the economic system.
The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.
"The greatest wisdom lies in understanding that we know nothing at all."
The act of painting is a way of thinking.