The secret of a good marriage is forgiving your partner for marrying you in the first place.

I do think the secret to a good marriage is separate bathrooms.

The secret of a happy marriage remains a secret.

People ask what the secret of a happy marriage is. If there is one, it's 'don't talk about it.'

The secret of politics? Make a good treaty with Russia.

The secret of a happy marriage is finding the right person. You know they're right if you love to be with them all the time.