"A profound feeling for the beauty and dignity of human nature and a firmness and determination of the mind to refer all one's actions to this as to a universal ground is earnest, and does not at all join with a changeable gaiety nor with the inconstancy of a frivolous person." With this observation, Kant will attempt to fit the various feelings of the beautiful and sublime, and the resulting moral characters, into Galen's rigid arrangement of the four humours or human temperaments: melancholic, sanguine, choleric, and phlegmatic.