The reality is: sometimes you lose. And you’re never too good to lose. You’re never too big to lose. You’re never too smart to lose. It happens.
萤火虫对群星说:「学者说你的光有一天会熄灭。」群星不回答它。
If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.