"No man is regular in his attendance at the House of Commons until he is married.

It destroys one's nerves to be amiable every day to the same human being.
It destroys one's nerves to be amiable every day to the same human being.
It destroys one's nerves to be amiable every day to the same human being.
It destroys one's nerves to be amiable every day to the same human being.