同一性的概念并不是我们从经验中学到的概念。

欲求新,则求变。欲求完美,求常变。

译文：人生的处境变化无常，我们一定要谋划未来，学习安身立命的本领；人生的光阴容易逝去，我们应该尽早谋划人生，确立目标并付诸行动。赏析：生命有限，时光短暂，我们应早日树立人生目标，学得一技之长，方能立于不败之地。

The knowledge that you have emerged wiser and stronger from setbacks means that you are, ever after, secure in your ability to survive. You will never truly know yourself, or the strength of your relationships, until both have been tested by adversity. Such knowledge is a true gift, for all that it is painfully won, and it has been worth more than any qualification I ever earned.

"It is during our darkest moments that we must focus to see the light."

Quality should never be compromised, no matter the pressure to cut costs.