愚蠢的人是危险的。
一个数学家的真正价值在于他们留下的问题。
The paper industry has a responsibility to lead the way in environmental stewardship.
The best way to predict the future is to invent it. Don't worry about what anybody else is going to do. The best way to predict the future is to invent it.
The most credible empirical research often comes from studies that have a clear and transparent design, where the assumptions are laid out for everyone to see.