The deep, personal material of the latter half of your life is your children. You can write about your parents when they're gone, but your children are still going to be here, and you're going to want them to come and visit you in the nursing home.

I can calculate the motions of the heavenly bodies， but not the madness of people.

The study of consciousness must be free from all metaphysical influences.

商业中最强大的工具是一个强大的团队。

The design of a system should be guided by the principle of least surprise, where the behavior of components is intuitive and predictable.