The traits the word 'childish' addresses are seen so often in adults that we should abolish this age-discriminatory word when it comes to criticizing behavior associated with irresponsibility and irrational thinking.
Over-sentimentality, over-softness, in fact washiness and mushiness are the great dangers of this age and of this people. Unless we keep the barbarian virtues, gaining the civilized ones will be of little avail.
It appears, accordingly, from the experience of all ages and nations, I believe, that the work done by freemen comes cheaper in the end than that performed by slaves.