The book of Proverbs teaches us that “a harsh word stirs up anger” (15:1), and “an angry man stirs up strife” (29:22), and “a hot-tempered man stirs up strife” (15:18), “an arrogant man stirs up strife” (28:25) and “hatred stirs up strife” (10:12). It’s pretty obvious, isn’t it, that “any fool can start a quarrel” (20:3). Question: Are you “any fool”? 
Some people go around looking for things about which to quarrel. Some folks intentionally wear their feelings on their sleeve, so that a quarrel about anything is quick to ensue. What “fools”!
The wise man instructs, “Stop contention before a quarrel starts” (17:14). But, how? Paul wrote, “A servant of the Lord must not quarrel” (2 Tim. 2:24). Read that again. So, how do we “not quarrel”? “Be kind to all, able to teach, patient when wronged, with gentleness…” (2:24-25). “Be quick to hear, slow to speak” (Jas. 1:19). “Any fool can start a quarrel,” but a “servant of the Lord must not quarrel.” Which are you? “Any fool” or “a servant of the Lord”?