A sad thing in life is when you meet someone who means a lot to you only to find out in the end that it was never meant to be and you just have to let go.
纠缠不仅仅是量子理论的一个奇特特征，它是量子力学的标志性特征。
It's not about being perfect, it's about being better than you were yesterday.
我不是人，我是人格面具。
Combinatorics is the art of counting without counting.