Next, it perceives that whatever gives pleasure to itself is called _good_ and _right_, while whatever causes unpleasant feelings is called _bad_ and _wrong_. Moreover, it notices that there is a right and wrong way to hold its spoon, to use its playthings, to put on its clothes, and to do multitudes of other things. It thus perceives, more and more, that there are _rules_ to regulate the use and action of all things, both animate and inanimate, and that such rules always have reference to some plan or design. As its faculties develop and its observation enlarges, the general impression is secured that _all_ plans and contrivances of men are designed to promote enjoyment or to prevent discomfort, and are called good and right just so far as this is done. At the same time, all that tend to discomfort or pain are called bad and wrong. In all the works of nature around, too, every thing that promotes enjoyment is called good and right, and the opposite is called evil and wrong. At last there is a resulting feeling that the great design of all things is to secure good and prevent evil, and that whatever is opposed to this is wrong, and unfitted to the object for which all things exist. The question whether this impression is owing solely to observation or partly to mental constitution is waived, as of little practical consequence. In the experience of infancy and childhood, the _law of sacrifice_ is speedily developed. It is perceived that much of the good to be gained, if sought to excess, occasions pain, so that there must be a certain amount of self‐denial practiced, which, to the young novice, sometimes involves disappointment and discomfort. It is also seen that frequently two or more enjoyments are offered which are incompatible, so that one must be relinquished to gain the other. It is perceived, also, that there is a constant calculation going on as to which will be the _best_—that is, which will secure _the most good with the least evil_. And the child is constantly instructed that it must avoid excess, and must give up what is of less value to secure the greater good. All this training involves _sacrifices_ which are more or less painful, so that a young child will sometimes cry as it voluntarily gives up one kind of pleasure as the only mode of securing what is best. It is perceived, also, that there is a constant _balancing_ of good and evil, so that a given amount of enjoyment cancels or repays for a certain amount of evil. When a great amount of enjoyment is purchased by a small degree of labor or trouble, the _compound result_ is deemed a good, and called right; on the contrary, when the evil involved exceeds a given amount in comparison to the good, the compound result is called evil and wrong. Thus is generated the impression that there is a law of sacrifice instituted requiring the greatest possible good with the least possible evil, and that this is the great design of all things.