Philosophy is not a doctrine but an activity.

"Writing is a way of talking without being interrupted."

Innovation is not imagination out of thin air, but based on a deep understanding of user needs.

Strength does not come from physical capacity. It comes from an indomitable will.

The pursuit of mathematical knowledge is a never-ending adventure.

“名声”如同是蒸气，“声望”如同是意外，在地球上唯一可以确定的事情是被遗忘掉。