Authors:

He that is master of himself will soon be master of others.

Henry George Bohn, John Ray (1860). “A Hand-book of Proverbs: Comprising an Entire Republication of Ray's Collection of English Proverbs, with His Additions from Foreign Languages : and an Alphabetical Index, in which are Introduced Large Additions, as Well of Proverbs as of Sayings, Sentences, Maxims, and Phrases”, p.389
He that is master of himself will soon be master of others.