IT IS EASY TO LEAD A SHAMELESS LIFE
Sujivam ahirikena kakasurena dhamsina
Pakkhandina pagabbhena samkilitthena jivitam.
Easy is the life of a man who is shameless, bold like a crow, a fault finder, insolent, impudent and corrupt. 
IT IS HARD TO LEAD A MODEST LIFE
Hirimata ca dujjivam niccam suci gavesina
Alinen' appagabbhena suddhajivena passata.
Hard is the life of a modest one who ever seeks purity, is detached, humble, clean in life, and reflective. 
One day, Cula Sari, a physician-monk, was returning to his dwelling place after ministering to a patient. On his way he met Venerable Sariputta and related to him how he had gone to treat a patient and how he had accepted some delicious food as payment for his services. He requested him to accept some of the food. Sariputta kept silent and continued on his way. He did not accept the food because Cula Sari had not observed the precept of abstaining from practising medicine for personal gain.
When informed of the matter, the Buddha said, 'Bhikkhus! A bhikkhu who is shameless, is coarse in thought, word and deed, he is arrogant like a crow. He will find a comfortable living by unlawful means. On the other hand, life for a bhikkhu who has a sense of moral shame is not easy.'