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If a thing can be done adequately by means of one, it is superfluous to do it by means of several; for we observe that nature does not employ two instruments [if] one suffices.

Thomas Aquinas, Anton C. Pegis (1997). “Basic Writings of St. Thomas Aquinas, Volume 2”, p.129, Hackett Publishing
If a thing can be done adequately by means of one, it is superfluous to do it by means of several; for we observe that nature does not employ two instruments [if] one suffices.