Simply profound and profoundly simple…
Long ago the Roman stoic philosopher Cato said that “he was never so busy as when he did nothing, and never less solitary than when he was alone.”
Attributed to Cato by Cicero, De Republica 1.7, trans. Francis Barham. My source is: Monastic Practices,Revised Edition, Charles Cummings, OCSO. Collegeville, MN: Cistercian Publications, Liturgical Press, 2015, p. 49.