Chapter 29, Part 1K - Chuang Tzu

"And now I'm going to tell you something - about man's true form. His eyes yearn to see colors, his ears to hear sound, his mouth to taste flavors, his will and spirit to achieve fulfillment. A man of the greatest longevity will live a hundred years; one of middling longevity, eighty years; and one of the least longevity, sixty years. Take away the time lost in nursing illnesses, mourning the dead, worry and anxiety, and in this life there are no more than four or five days in a month when a man can open his mouth and laugh. Heaven and earth are unending, but man has his time of death.

"Take this time-bound toy, put it down in these unending spaces, and whoosh! - it is over as quickly as the passing of a swift horse glimpsed through a crack in the wall! No man who is incapable of gratifying his desires and cherishing the years fate has given him can be called a master of the Way. What you have been telling me - I reject every bit of it! Quick, now - be on your way. I want no more of your talk. This `Way' you tell me about is inane and inadequate, a fraudulent, crafty, vain, hypocritical affair, not the sort of thing that is capable of preserving the Truth within. How can it be worth discussing!"
~ Burton Watson translation via Terebess Asia Online ~

Go here to read the introductory post to the chapters of the Book of Chuang Tzu.