没有内容的思想是空洞的，没有概念的直觉是盲目的。

It is remarkable that a science which began with the consideration of games of chance should have become the most important object of human knowledge.

I am not the luckiest person, but I am the most hardworking person.

数学不是关于数字、方程、计算或算法的：它是关于理解的。

思维的功能是指导行动。