You can't change the past, but you can shape the future.
你无法改变过去,但你可以塑造未来。
我们需要犯错的自由,承认错误的勇气,以及从中学习的智慧。
人生苦短,必须快乐。
相信自己,你可以做到。
The only limit to our realization of tomorrow is our doubts of today.
To understand a program you must become both the machine and the program.