@vonny,
vonny wrote:
“Never argue with an idiot; he will bring you down to his level and win from experience.”
― Brad Slipiec
Because I have seen this quote attributed to Mark Twain, I googled it.
From googling around, I found these three variations. One came from the Bible but I couldn’t find any credible source for the other two.
Don’t argue with idiots because they will drag you down to their level and then beat you with experience. —Greg King
Never argue with a fool; onlookers may not be able to tell the difference. —Mark Twain
Answer not a fool according to his folly, lest thou also be like unto him. —Proverbs 26:4 (King James version)
As you can see, only the last one is easily verifiable.