I have self-doubt. I have insecurity. I have fear of failure. I have nights when I show up at the arena and I’m like, “My back hurts, my feet hurt, my knees hurt. I don’t have it. I just want to chill.” We all have self-doubt. You don’t deny it, but you also don’t capitulate to it. You embrace it.

数学不是一项观赏性运动。你必须参与其中。

Understanding the computational complexity of learning problems is essential for developing efficient algorithms.

The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.

密码学和复杂性理论的交叉点是计算机科学中一些最迷人问题的所在。