Exhausted But Delighted

For the past three days, my evening life pattern is like this:

After dinner, I went to sleep until 9~9:30pm.  Then I started to work, grading students' compositions or translations, and preparing lessons until 12:30am. 

No time for TV (thanfully, I don't fall for TV), squeezing time out for reading, exhausted but delighted to bed, sound sleep till morning.  Every morning when I woke up, I recalled the sentence in the article, "Advice to A Young Man" by Robert Jones Burdette:

"The work gives you appetite for meal; it lends solidity to your slumbers; it gives you a perfect and grateful appreciation of a holiday."

We can work very very hard but still sing in our heart.