In science, we try to explain what we don't understand. In mathematics, we try to understand what we can't explain.
在科学中，我们试图解释我们不理解的事物。在数学中，我们试图理解我们无法解释的事物。
One of my most productive days was throwing away 1000 lines of code.
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.
普通的草木到了秋天就凋零了，只有松柏在秋天，仍郁郁葱葱。点评：南北朝时期刘宋学者刘义庆曾言「蒲柳之姿，望秋而落；松柏之质，凌霜犹茂。」松柏两树皆长青不凋，是志操坚贞的象征。
The only limit to our realization of tomorrow is our doubts of today.