We don't inherit leather from our ancestors—we borrow it from our children.

Everymorning I jump out of bed and step on a landmine. The landmine is me. After the explosion, I spent the rest of the day putting the pieces together.

The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.

发现可能性的唯一方法是超越它们进入不可能。