So we beat on, boats against the current, borne back ceaselessly into the past.
于是我们继续奋力向前，逆水行舟，被不断地向后推，直至回到往昔岁月。
The most important thing you can do to achieve your goals is to make sure that as soon as you set them, you immediately begin to create momentum.
故事不是一条线，而是一张网。
History is not the past—it is the method we have evolved of organizing our ignorance of the past.
The beauty of mathematics is that it allows us to abstract away the complexities of the real world and focus on the underlying principles.