“A penny saved is a penny earned” is an example of an aphorism.
Origin of aphorism
- French aphorisme from Old French from Late Latin aphorismus from Greek aphorismos from aphorizein to delimit, define apo- apo- horizein to delimit, define horizon
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle French aphorisme, from Late Latin aphorismus, from Ancient Greek ἀφορισμός (aphorismos, “pithy phrase containing a general truth”), from ἀφορίζω (aphorizō, “I define, mark off or determine”), from ἀπό (apo, “off”) + ὁρίζω (horizō, “I divide, bound”), from ὅρος (horos, “boundary”).