The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
写作的行为是一种乐观的行为。如果你觉得这无关紧要，你就不会费心去做。
数学不仅仅是关于数字、方程、计算或算法，而是关于理解。
人生最幸福嘅事，就系做自己钟意做嘅事。
Some men can get results if kindly encouraged, but give me the kind that do things in spite of hell.
You can’t go back and change the beginning, but you can start where you are and change the ending.