离散数学和连续数学之间的相互作用是一些最有趣的问题所在。
The interplay between discrete and continuous mathematics is where some of the most interesting problems lie.
你必须具备的三种能力:在确认一件事情能运作之前永不言弃的能力,在确认一件事情无法工作下去时放弃他的能力,以及信任能帮助你区分二者的人。
做事情不需要花费许多的体力,但做决定需要付出很大的精力。
Mental activity is always directed toward some end.
The only limit to our realization of tomorrow will be our doubts of today.
The best way to predict the future is to create it.