I have learned silence from the talkative, toleration from the intolerant, and kindness from the unkind; yet, strange, I am ungrateful to those teachers.
Khalil Gibran

The language. It tells us a lot about people. The way we speak reflects our thoughts and attitude. The words we use tell us a lot about who and what we are. Argument is all about manipulation of words and love is all about decoration of words.