这个世界会打击每一个人，但经历过后，有些人会在受伤的地方变得更坚强。
The world breaks everyone, and afterward, some are strong at the broken places.
数学家的工作永无止境；总有新的问题要问，新的谜题要解。
The organism learns not only what to do but also what leads to what.
The leather industry must evolve to meet both environmental standards and consumer expectations without compromising quality.
引用和菜头
Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever.
过去从未死去，它甚至不是过去。