Proverbs 18:1

Evidently the intent is, "He who separates himself [from other people]" does so because he wants his own way and does not want others to restrain him. Such an approach runs counter to sound wisdom because we all need input from other people to make wise decisions. It is unwise to be antisocial in the schismatic sense of that word (cf. Genesis 13:11). [Note: Toy, p. 354.]

". . . unfriendliness and unreasonableness are inseparable." [Note: Waltke, The Book . . . 31, p. 69.]