Srimad Bhagavatam Canto 07, Chapter 15, Text 18

SB 7.15.18

santustah kena va rajan
 na vartetapi varina
aupasthya-jaihvya-karpanyad
 grha-palayate janah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
My dear King, a self-satisfied person can be happy even with only drinking water. However, one who is driven by the senses, especially by the tongue and genitals, must accept the position of a household dog to satisfy his senses.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
According to the sastras, a brahmana, or a cultured person in Krsna consciousness, will not enter anyone’s service to maintain body and soul together, and especially not for satisfaction of the senses. A true brahmana is always satisfied. Even if he has nothing to eat, he can drink a little water and be satisfied. This is only a matter of practice. Unfortunately, however, no one is educated in how to be satisfied in self-realization. As explained above, a devotee is always satisfied because he feels the presence of the Supersoul within his heart and thinks of Him twenty-four hours a day. That is real satisfaction. A devotee is never driven by the dictations of the tongue and genitals, and thus he is never victimized by the laws of material nature.
Srimad Bhagavatam Canto 07, Chapter 15, Text 17
Srimad Bhagavatam Canto 07, Chapter 15, Text 19