Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning.

【译文】一辈子不做不应该做的事，世界上就不会有痛恨自己的人了。

The eyes of others our prisons; their thoughts our cages.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。