出自《论语·子罕篇第九》。我曾经用尽全力，但是孔夫子仍然卓立在我的面前，我想要去追从他，但是总觉得没有办法能够追上去。
The only relationship that can make both partners happy is one in which sentimentality has no place and neither partner makes any claim on the life and freedom of the other.
形式语言和自动机的研究对于理解计算机科学的理论基础至关重要。
The most difficult challenges often present the greatest opportunities for transformation.
燕子飞来时正值春社，梨花凋落后便是清明时节。
"Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying 'I will try again tomorrow.'"