A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else.
John LockeThe only thing we are naturally afraid of is pain, or loss of pleasure. And because these are not annexed to any shape, colour, or size of visible objects, we are frighted of none of them, till either we have felt pain from them, or have notions put into us that they will do us harm.
John LockeMerit and good works is the end of man's motion; and conscience of the same is the accomplishment of man's rest; for if a man can be partaker of God's theatre, he shall likewise be partaker of God's rest.
John LockeHe that makes use of another's fancy or necessity to sell ribbons or cloth dearer to him than to another man at the same time, cheats him.
John Locke