A company's culture is defined by the actions of its leaders, not just its mission statement.

There is a history in all men's lives.

The total amount of suffering per year in the natural world is beyond all decent contemplation.

The pursuit of mathematical knowledge is a journey that never ends.

当你年轻的时候，至少花6个月到1年的时间，尽可能地过贫穷的生活，尽可能少地拥有东西，在一个小房间或帐篷里只吃豆子和米饭，以体验你 “最糟糕”的生活方式可能是什么。这样一来，当你将来要冒什么风险时，你就不会害怕最坏的情况了。