The conscious life of a human being is by no means limited to the perception of sensations and the exercise of reason. These are important functions, but they are not all. A human being is also provided with a heart, which is capable of feeling sympathy for other human beings--for all living things. This sympathetic feeling may cover a wide range--pity, commiseration, friendship, admiration, devotion, adoration. It is not the nature of mankind to live an isolated existence, in loneliness. Boys and girls, men and women, from the beginning of life to the end, yearn for the companionship of others with whom they can share their thoughts and feelings, their pleasures and their pains. Through association with others come affectionate feelings for certain ones. We attach ourselves to them with bonds of sympathy, understanding, love. The feeling of affection is such a normal and essential part of human life that it seeks to find expression at every opportunity. A warm-hearted child will lavish it on a kitten, or a rag doll; or will show it for a mongrel dog. If the kitten, or the dog is hurt, or sick, or even hungry, the girl or boy will be distressed by its trouble and want to help it. This is a primitive form of the feeling; carried to its full development in the heart of a sensitive, noble nature it becomes one of the most beautiful and vital of human attributes. As we share our thoughts and feelings with another and are allowed to share his in return, our centre of interest expands, as it were, and the essence of life within us enriches itself by this sympathetic mingling with the essence of the other. His thoughts, his feelings, his welfare are no longer a matter of indifference to us. As our sympathy and attachment grow, we become more and more concerned in this other's interests; they become a part of our existence, in a strange and lovely way, just as real and just as dear to us as if they were our own. Any pleasure, or good fortune, becomes doubly grateful, if we may share it with him; no pleasure is worth considering, if in order to obtain it, we would be obliged to cause him a deprivation. We cannot forget his welfare, or his happiness, we do not wish to forget his welfare or his happiness, because through our sympathy and affection, the essence of another life has become inexpressively near and dear to us. To a greater or less degree, this capacity for affection is inherent in human kind, from the lowest to the highest. It is a most precious human quality and it opens the gates of life to a sort of satisfaction that is infinitely bigger and finer and more lasting than anything that can be obtained from the mere gratification of selfish and material impulses.