You can’t control the length of your life – but you can control its width and depth. You can’t control the contour of your face – but you can control its expression. You can’t control the weather – but you can control the atmosphere of your mind. Why worry about things you can’t control when you can keep yourself busy controlling the things that depend on you. I have learned from experience that the greater part of our happiness or misery depends on our dispositions and not on our circumstances.