He that is unkind to his own will not be kind to others.
More Gaelic Proverbs:
The devil is fond of his own.Gaelic
You a lady, I a lady, who is to put the sow out of doors?
Gaelic
Friends and mules fail in hard trials.
Gaelic
The cow that does not eat with the oxen, either eats before or after them.
Gaelic
The hen's eyes are where her eggs are.
Gaelic