This quotes is by Maya Angelou. And all the titles for future quotes are going to be who the quote was by, and the date. When I put the date, it helps me.
I don't care who you are, you deserve to be treated with respect, but that is the same with others. A single sentence can ruin someone's day, someone's week, or their life. They might not remember what you said, but it does not mean it didn't affect them. I know you probably hear this all the time, but think before you speak.