It is not because certain things are difficult that we do not dare;it is because we do not dare that things are difficult.
市场效率并不意味着价格总是正确的,而是意味着价格不可能被一致预测。
统治阶级掌握着物质生产的手段;无产阶级仅有的是他们的劳动力。
The most important part of teaching is to teach what it is to know.
数学的研究就像空气或重力——它无处不在,即使你看不到它。
I believe in hard work. I believe in the process. I believe in the journey.