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I think that the role of the mathematician is to discover these patterns and to explain them.
农业的真正进步是用健康衡量的,而不仅仅是产量。
我是个战士,我是个奋斗者,我是个幸存者。
对天资在中等程度以上的人,可以和他谈论高深的学问;而对于中等以下天资的人,则不可以和他谈论高深的学问。
The ladder of causation has three rungs: seeing, doing, and imagining.