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"The challenge in theoretical computer science is not just to solve problems, but to understand why they are hard to solve."
The creative process is never the same.
You can't change the past, but you can ruin the present by worrying about the future.
The joy of mathematics comes from the moments of clarity when complex things become simple.
痛苦并不总是身体上的;有时最深的伤口是我们看不见的。
最强大的人永远不足以始终成为主宰,除非他将力量变为权力,服从变为义务。