如果你觉得你看到了一只老鼠，那么你肯定就是看到了。而且，如果有一只的话，就会有更多。

不要让任何人熄灭你的光芒。

森林物种的多样性反映了商业思维所需的多样性。

To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.