Technology should serve humanity, not the other way around.

So long as you have food in your mouth, you have solved all questions for the time being.

数学之美在于它能够将复杂的事物简化。

只要你没做太多的错事，一生中，你只需要做几件正确的事情。

贫穷并不等于缺乏意志力，而是缺乏选择。