it is the part of a good shepherd to shear his flock, not to skin it

US /ɪt ɪz ðə ˈpɑːrt əv ə ˌɡʊd ˈʃep.ərd tə ˌʃɪr hɪz ˈflɑːk nɑːt tə ˈskɪn ɪt/
"it is the part of a good shepherd to shear his flock, not to skin it" picture
1.

好牧人应该剪羊毛，而不是剥羊皮