This period, as we have seen, first gave the highest development to individuality, and then led the individual to the most zealous and thorough study of himself in all forms and under all conditions. Indeed, the development of personality is essentially involved in the recognition of it in oneself and in others. Between these two great processes our narrative has placed the influence of ancient literature, because the mode of conceiving and representing both the individual and human nature in general was defined and coloured by that influence. But the power of conception and representation lay in the age and in the people. The facts which we shall quote in evidence of our thesis will be few in number. Here, if anywhere in the course of this discussion, the author is conscious that he is treading on the perilous ground of conjecture, and that what seems to him a clear, if delicate and gradual, transition in the intellectual movement of the fourteenth and fifteenth centuries, may not be equally plain to others. The gradual awakening of the soul of a people is a phenomenon which may produce a different impression on each spectator. Time will judge which impression is the most faithful. Happily the study of the intellectual side of human nature began, not with the search after a theoretical psychology--for that, Aristotle still sufficed--but with the endeavour to observe and to describe. The indispensable ballast of theory was limited to the popular doctrine of the four temperaments, in its then habitual union with the belief in the influence of the planets. Such conceptions may remain ineradicable in the minds of individuals, without hindering the general progress of the age. It certainly makes on us a singular impression, when we meet them at a time when human nature in its deepest essence and in all its characteristic expressions was not only known by exact observation, but represented by an immortal poetry and art. It sounds almost ludicrous when an otherwise competent observer considers Clement VII. to be of a melancholy temperament, but defers his judgment to that of the physicians, who declare the pope of a sanguine-choleric nature;[706] or when we read that the same Gaston de Foix, the victor of Ravenna, whom Giorgione painted and Bambaja carved, and whom all the historians describe, had the saturnine temperament.[707] No doubt those who use these expressions mean something by them; but the terms in which they tell us their meaning are strangely out of date in the Italy of the sixteenth century. As examples of the free delineation of the human spirit, we shall first speak of the great poets of the fourteenth century.