The most damaging phrase in the language is: 'We've always done it this way.'
我认为能够对生活笑是很重要的。
万物都存在于心中，心中充满道理，充塞宇宙的也无非是这个理。
教育是在所学知识被遗忘后仍能留存的东西。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.