“Men are not afraid of things, but of how they view them.”
“Men are disturbed not by the things that happen, but by their opinion of the things that happen.”
“Other people's views and troubles can be contagious. Don't sabotage yourself by unwittingly adopting negative, unproductive attitudes through your associations with others.”
“We are not disturbed by what happens to us, but by our thoughts about what happens to us.”
“What concerns me is not the way things are, but the way people think things are.”
“Any person capable of angering you becomes your master;he can anger you only when you permit yourself to be disturbed by him.”