I just google the text and I found out the author is Eckhart Tolle

The Flying Butter, I agee, it definitely helps to see things from other peoples perspective. Often people are so stuck in their minds and so attached to their opinion they find it very hard to let go of that, they dont want to accept the fact that what they're thinking is only their opinion...and with that limited view of life we greet and welcome suffering into our lives and we wonder why on earth we feel stressed out, depressed and lonely.
But your also right about the other thing, it can be difficult to react with love and acceptance to those who are mean to you. But in my opinion, the more you focus on that which brings you joy the more you will bring joy to others, judging someone and hurting someone never helps, it only hurts (emotionally) and creates fear and hate. Sometimes we simple need to be reminded of that