The mind is nature's answer to the challenges of existence.

解释：走夜路的人可以保证自己不做坏事，但却没有办法让狗不对着自己乱叫。

I think that it's important to have a sense of humor in life. It helps you get through the tough times.

真相并不总是令人舒适，但它是必要的。

适应性是将成功企业与其他企业区分开来的因素。