What you can control are your attitudes about the things in your life.  And so it is your inner self, your attitudes, that you should be concerned about.

Bart D. Ehrman.  

Every human interaction offers you the chance to make things better or to make things worse.

Barbara Brown Taylor

Since we are all One, remember that when you deny others peace, love, forgiveness and joy – you are denying them to yourself.

James Blanchard Cisneros

I can never be what I ought to be until you are what you ought to be.  You can never be what you ought to be until I am what I ought to be.

Martin Luther King Jr. 

Peace is not the absence of war, it is a virtue, a state of mind, a disposition of benevolence, confidence, justice.

Baruch Spinosa