市场总是在变化，你必须能够适应。
The fundamental 'formula' of Gestalt theory might be expressed in this way: There are wholes, the behavior of which is not determined by that of their individual elements, but where the part-processes are themselves determined by the intrinsic nature of the whole.
数学是人类精神最美丽和最强大的创造。
价格是你付出的，而价值才是你得到的。