A true friend is someone who sees the pain in your eyes while everyone else believes the smile on your face.
The interplay between topology and quantum mechanics is a rich field of study that continues to surprise us with its depth and complexity.
将过去交托给上帝的怜悯，将现在交托给上帝的爱，将未来交托给上帝的谋划。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
The past is never dead. It's not even past.