Most people probably agree with this well-known saying. But what about other family-related sayings such as

"When our relatives are at home, we have to think of all their good points or it would be impossible to endure them."  (George Bernard Shaw)

or the Spanish proverb

"An ounce of blood is worth more than a pound of friendship."

Quotegarden, an entire website full of all kinds of quotes and sayings, has a lot of proverbs all around the family, some quite famous, some odd. But a few are hilarious, like this one:

"Families are like fudge – mostly sweet with a few nuts."  (Author Unknown)