which means we come at last to confound our own interests with theirs, and to feel the same anxiety for their welfare without any view to our own advantage. A man according to this hypothesis becomes attached to others as he becomes attached to any other indifferent object, to a tree, or a stone, from familiarity, and the frequent association of his immediate gratification with the indifferent idea; and this attachment once formed, he must afterwards be interested in their welfare whether he will or no. An example of this may be given in boys at school. A boy is confined to his task at the same time with his school-fellows; he feels the effects of the good or ill humour of the master in common with the rest; when the school-hour is over, they are all let loose to play together; he will in general like the same games that others do, and be most delighted when they are noisiest, when they happen to be in the best humour, in the hottest part of the game, on the finest days, or in the pleasantest places: they will have the same joyous breakings-up for the holidays, and will often on some bright morning stroll out in search of unknown good, and return home tired and disappointed together. Would it not be strange if this constant fellowship of joys and sorrows did not produce in him some sensibility to the good or ill fortune of his companions, and some real good-will towards them The greatest part of our pleasures depend upon habit: and as those which arise from acts of kindness and disinterested attachment to others are the most common, the most lasting, the least mixed with evil of all others, as a man devoid of all attachment to others, whose heart was thoroughly hard and insensible to every thing but his own interest would scarcely be able to support his existence (for in him the spring and active principle of life would be gone), it follows that we ought to cultivate sentiments of generosity and kindness for others out of mere
