Leonardo da Vinci: Where there is shouting, there is no true knowledge

Where there is shouting, there is no true knowledge.
- Leonardo da Vinci

Thoughtful people seldom share exactly the same opinion - the same point-of-view. The wise ones understand that they know nothing - for virtually none of our experience is truly factual - and they graciously honor all other opinions.

Arguing is merely defending one's opinion by labeling it, "Fact" or "The Truth."