最好的投资是商业模式的持久性。
Reality is always richer than any idea we can have of it.
Ignorance is easier to get than knowledge.
我是个完美主义者,我承认这一点。我总是在努力改进。
让孩子留在家里最好的方法是让家庭氛围愉快——并且把轮胎的气放掉。
In mathematics, the art of proposing a question must be held of higher value than solving it.