数学的进步是通过它能解决的问题数量来衡量的。
The progress of mathematics is measured by the number of problems it can solve.
Color is my day-long obsession, joy and torment.
世界是事实的总体,而不是事物的总体。
The course of development consists simply in this; that in each generation the two parental traits appear, separated and unchanged.
我扮演的每一个角色都是我留下的一片灵魂。
【译文】 孔子说:“读书不想事,越学越糊涂;想事不读书,越想越头痛。”
抽象的力量在于它允许我们忽略不相关的细节,专注于问题的本质方面。