{informal} A person must act well and generously so that he will be truly worth respecting. - A proverb. * /Everyone thinks that Bon is a very handsome boy, but he is very mean too. Handsome is as handsome does./ Compare: FINE FEATHERS DO NOT MAKE PINE BIRDS.
HANDSOME IS AS HANDSOME DOES
Meaning of HANDSOME IS AS HANDSOME DOES in English
Dictionary of English idioms . Словарь английских идиом. 2012