Growth is painful, but nothing is as painful as staying stuck.

The beauty of literature is that it allows us to live a thousand lives in one.

The best strategy is simple but not easy.

The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards - and even then I have my doubts.

增长不仅仅是数字的问题；它关乎创造持久的价值。

The principle goal of education in the schools should be creating men and women who are capable of doing new things, not simply repeating what other generations have done.

正向强化的实施方式比其数量更重要。