局外人

I never buy a stock unless I understand the business.

译文：少年不知道早起勤奋学习，到老了后悔读书少就太迟了。赏析：人在年轻时，精力旺盛，正是勤奋读书，努力奋斗的时候。

Reality is always richer than any idea we can have of it.

The intersection of computer science and mathematics is where the most exciting breakthroughs are happening.