在数学中，从困惑到清晰的旅程是最有价值的体验。
In mathematics, the journey from confusion to clarity is the most rewarding experience.
被原谅只是礼物的一半。另一半是我们也可以原谅，恢复失去的，修补破碎的。
我不怕死，我怕的是不去尝试。
The poet is a man who can turn the ordinary into the extraordinary.
人生苦短，不该在痛苦中虚度。
You have to figure out what your own aptitudes are. If you play games where other people have the aptitudes and you don’t, you’re going to lose. And that’s as close to certain as any prediction that you can make. You have to figure out where you’ve got an edge. And you’ve got to play within your own circle of competence.
计算学习理论中的一个关键见解是，学习问题的复杂性由假设空间的复杂性和可用数据的数量决定。
