the soil is worthless except to raise fruit. As it would be folly for a man to invest every thing in land and nothing in raising crops, so it is folly to give all the attention of life to the means of living, and none to the development of life. The period best adapted to this higher end, the development of life's nobler forces, is the time when physical strength is not equal to the burden of gaining a livelihood, and this should be given to mental development; and as much more should be devoted to the same end as is consistent with other obligations. In the third place, a true education will never raise one above his proper station in life. The proper station for every intelligent being is the highest plane of intellectual and moral life which he is capable of reaching. The moral obligations of society should be trusted to hold men in their proper relations toward one another, rather than ignorance. An individual's intellectual and moral powers are so much higher than the ends subserved by the ordinary employments of life, that the Creator has made it possible for one to enjoy happiness under almost any conditions of physical discomfort if the mind be trained and the moral purpose noble.

PART III.

DEVELOPMENT OF THE SEVERAL FACULTIES.

CHAPTER I.

COGNITIONS.

classification of the mental faculties has already been given, and the order of their dependence and development shown. Laws have also been given for their development in general. It is the design of this part of the work to treat of the development of each separately.

I. THE ACQUISITIVE FACULTY.

1. All our primary, or immediate knowledge, is gained by the use of the senses and self-consciousness, and all other knowledge is based on this. The importance of the right development and use of this faculty is thus seen to be fundamental.

2. First, let us consider the development of senseperception. Such a perception is the result of two different activities, the activity of the senses, called a sensation, and the activity of the mind by which the cause of the sensation is identified with other percepts. We affirm the existence of a sensation by an act of self-consciousness, and we affirm the existence of that which excites the perception through the senses, and this latter is perception proper. The most important Laws to be applied to the development of perception are:

(1.) The first Law of Sequence. The perceptive powers are the first mental powers to be cultivated, and the first