数学的美在于它允许我们从物理世界中抽象出来，专注于基本原理。
The beauty of mathematics is that it allows us to abstract away from the physical world and focus on the underlying principles.
The significance of a mental state lies in what it leads to.
在快速变化的市场中，灵活性和适应性是企业成功的关键。
I'm not perfect, and I don't pretend to be.
吃饭不可不嚼便咽，走路不可不看便走，话不可不考虑便信口乱说，事不可不计划就贸然去做，衣服不能随便就脱，钱财不能随便据为已有，怒气不可不忍而任意发作，朋友不可不加选择地乱交。