市场总是在变化，你的策略也应该如此。

The value of a thought is in its consequences for behavior.

Our capacity to draw happiness from aesthetic objects or material goods in fact seems critically dependent on our first satisfying a more important range of emotional or psychological needs, among them the need for understanding, for love, expression and respect.

有人居住的世界的边界是由人类知识的极限决定的。