I don't think you should ever have to apologize for your excitement.
计算复杂性的美在于它能够根据问题的固有难度对问题进行分类。
唯一受过教育的人是学会了如何学习和改变的人。
The future city will be a ruin from the beginning.
人生は、運と偶然と、ちょっとの勇気でできている。
The past is never dead. It's not even past.