I sent my Soul through the Invisible, Some letter of that After-life to spell: And by and by my Soul return'd to me, And answer'd "I Myself am Heav'n and Hell."

The absence is more important than the presence.

A good algorithm is like a well-tuned instrument, producing harmony from chaos.

可持续性不是一种选择，而是一种责任。

I don't have to try to be different; I am different.

每个国家的历史始于一个人的心灵中。

操办丧事，虽然礼仪繁多，但表达哀悼之情，才是最根本的。

Life can only be understood backwards；but it must be lived forwards.