Mental processes are tools for mastering the environment.

物种之间的边界比我们想象的更具渗透性。

情感的好处就是让我们引入歧途，而科学的好处是不感情用事。

释义：野花虽然没有人专门去种，但每年都会自然生长；而烦恼虽然没有实质的根源，但却每天都在滋生。

"Love and war are two sides of the same coin."

There is only one boss. The customer. And he can fire everybody in the company from the chairman on down, simply by spending his money somewhere else.