The dread of evil is a much more forcible principle of human actions than the prospect of good.
John LockeThe first idea the child must acquire is that of the difference between good and evil.
Maria MontessoriStillness of person and steadiness of features are signal marks of good breeding.
Oliver Wendell Holmes, Sr.There is no such whetstone, to sharpen a good wit and encourage a will to learning, as is praise.
Roger Ascham