It is much easier to change how you think by changing your behavior， than it is to change your behavior by changing how you think. Act out the change you seek.

今天很残酷，明天更残酷，后天很美好，但绝对大部分是死在明天晚上，所以每个人不要放弃今天。

It's simple, you just take something and do something to it, and then do something else.

我不是商人，我就是生意本身。