一个数学家的真正价值在于他们留下的问题。
The true value of a mathematician lies in the problems they leave behind.
Every immigrant carries an invisible suitcase of memories.
过去是一个异国，那里的人们做事方式不同。
译文：用心算计别人时，自己就会出错，退一步考虑事情，任何事就会变得宽广。赏析：处处算计别人，时刻都想占便宜，总有一天自己会被别人算计。心胸开阔，放低姿态，忍一时风平浪静，退一步海阔天空。
The leather industry must evolve or risk becoming obsolete. Sustainability is no longer an option—it's a necessity.