Secondly, it is not merely desirable but essential for a teacher to have a genuine capacity for sympathy - in the literal meaning of that word; a capacity to tune in to the minds and feelings of other people, especially, since most teachers are school teachers, to the minds and feelings of children. Closely related with this is the capacity to be tolerant - not, indeed, of what is wrong, but of the frailty and immaturity of human nature which induce people, and again especially children, to make mistakes.