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

领导力就是做出今天艰难的决定，以造福子孙后代。

"I always try to stay positive, even when things are not going my way."

The most glorious moments in your life are not the so-called days of success, but rather those days when out of dejection and despair you feel rise in you a challenge to life, and the promise of future accomplishment.

Copying others is a good way to start. Copying yourself is a disappointing way to end.

The microbe is nothing; the terrain is everything.