A sound mind in a sound body is a short but full description of a happy state in this world.
John LockeTo ask at what time a man has first any ideas is to ask when he begins to perceive; having ideas and perception being the same thing.
John LockeThe first step to get this noble and manly steadiness, is... carefully keep children from frights of all kinds, when they are young. ...Instances of such who in a weak timorous mind, have borne, all their whole lives through, the effects of a fright when they were young, are every where to be seen, and therefore as much as may be to be prevented.
John Locke