All his intellectual occupations are of a higher order, as are also his moral attributes (obedience, serenity, perseverance).

Taking the line of quiescence as a level of development, it follows that the level has become higher.

In a superior stage, the line of work tends to become straight, parallel to the line of quiescence.

Meanwhile it has been established that it is possible to determine degrees of development, or averages of internal development, by means of which individual variations may be studied. In the primordial type the characteristics are disorderly conduct, and incapacity to concentrate attention; in such a case there is no real line of work, and the main part of the diagram remains below the line of quiescence. For the type in which the phenomenon of permanent concentration of attention on a task has manifested itself, the average characteristic diagram of normal orderly work of the first degree is now established: i. e. preliminary work followed by a period of restlessness, and then strenuous work followed by a state of repose.

Afterwards we distinguish a second degree, where the average is characterized by the disappearance of the period of unrest, and the strenuous work is brought to a close in contemplation; this is the stage of discoveries, of generalized observation, of obedience; work has become a habit.

This is followed by a general elevation, to be recognized by the choice of higher preliminary work; disciplined behavior has become a habit.

During this progression the diagram of work tends to become straight, and parallel to the line of quiescence.