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The most important property of a program is whether it accomplishes the intention of its user.

過去總是與我們同在，它塑造了我們是誰以及我們成為什么。

The best quarries leave no scars, only responsible transitions.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

If you ask an economist what’s driven economic growth, it’s been major advances in things that mattered – the mechanization of farming, mass manufacturing, things like that. The problem is, our society is not organized around doing that.