True progress happens when we step out of our comfort zones and embrace change.

Hard work, under the old system, meant doing as little as possible.

计算复杂性的研究不仅仅是关于解决问题，还在于理解可计算性的极限。

你的自我价值由你自己决定。你不必依赖别人来告诉你你是谁。