-ics

A suffix used in forming the names of certain sciences, systems, etc., as acoustics, mathematics, dynamics, statistics, politics, athletics.

Mathematics have for their object the consideration of whatever is capable of being numbered or measured. — John Davidson

Ethics is the sciences of the laws which govern our actions as moral agents. — Sir W. Hamilton

All parts of knowledge have their origin in metaphysics, and finally, perhaps, revolve into it. — De Quincey

Mechanics, like pure mathematics, may be geometrical, or may be analytical; that is, it may treat space either by a direct consideration of its properties, or by a symbolical representation. — Whewell