Thoughts of malice, envy, disappointment, despondency, rob the body of its health and grace. A sour face does not come by chance; it is made by sour thoughts. Wrinkles that mar are drawn by folly, passion, and pride.

I know a woman of ninety-six who has the bright, innocent face of a girl. I know a man well under middle age whose face is drawn into inharmonious contours. The one is the result of a sweet and sunny disposition; the other is the outcome of passion and discontent.

James Allen, As a Man Thinketh