It is claimed by some of the best authorities that to develop the finer and higher æsthetic feelings and understanding we must learn to find beauty and excellence in things removed from ourselves or our selfish interests. The narrow, selfish emotions kill the æsthetic feelings--the two cannot exist together. The person whose thoughts are centered on himself or herself very rarely finds beauty or excellence in works of art or music. Grant Allen well sums up the subject in the following words: "_Good taste is the progressive product of progressing fineness and discrimination in the nerves, educated attention, high and noble emotional constitution, and increasing intellectual faculties._" CHAPTER XVII. The Intellectual Emotions. By "the intellectual emotions" is meant that class of emotional feeling resulting from the presence of objects of intellectual interest. This class of emotions depends for its satisfaction upon the exercise of the intellectual faculties, from the most simple to the most complex, and including perception, memory, imagination, reason, judgment, and all the logical faculties. Those who are accustomed to employing the mind through voluntary attention, particularly in the direction of creative ideation or constructive imagination, experience these emotions to a greater or less degree. The exercise of perception, if we are skilled therein, gives us a pleasurable feeling, and if we succeed in making an interesting or important discovery by reason thereof, we experience a strong degree of emotional satisfaction. Likewise, we experience agreeable feelings when we are able to remember distinctly something which might well have been forgotten, or when we succeed in recalling something which had escaped our memory for the moment. In the same way the exercise of the imagination is a source of great pleasure in many cases in the direction of writing, planning, inventing, or other creative processes, or even in the building of air castles. The exercise of the logical faculties gives great pleasure to those in whom these faculties are well developed. Halleck well says: "There was probably not a happier moment in Newton's life than when he had succeeded in demonstrating that the same power which caused the apple to fall held the moon and the planets in their orbits. When Watts discovered that steam might be harnessed like a horse, when an inventor succeeds in perfecting a labor-lightening device, whenever an obscurity is cleared away, the reason for a thing understood, and a baffling instance brought under a general law, intellectual emotion results."