The more you lose, the more you learn. The more you learn, the better you get.
The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.
If you loan someone $20 and you never see them again. That makes it worth $20.
我们实现明天的唯一限制将是我们今天的怀疑。
The greatest glory in living lies not in never falling, but in rising every time we fall.
在商业中，如果你不前进，你就在落后。