That moderation which nature prescribes, which limits our desires by resources restricted to our needs, has abandoned the field; it has now come to this — that to want only what is enough is a sign both of boorishness and of utter destitution. – Seneca (Seneca the Elder)

You will go most safely in the middle. – Ovid

Moderation is an ostentatious proof of our strength of character. – Francois de la Rochefoucauld