Saadi Shirazi - Ch 08 On Rules For Conduct In Life - Maxim 31

If there were no craving of the stomach, no bird would enter the snare of the fowler; nay, he would not even set the snare.

Saadi Shirazi

http://www.poemhunter.com/poem/ch-08-on-rules-for-conduct-in-life-maxim-31/