1. A collective idea is one idea.
Besides these complex ideas of several single substances, as of man, horse, gold,
violet, apple, etc., the mind hath also complex collective ideas of substances; which I so call, because such ideas
are made up of many particular substances considered together, as united into one idea, and which so joined are
looked on as one; v.g. the idea of such a collection of men as make an army, though consisting of a great number
of distinct substances, is as much one idea as the idea of a man: and the great collective idea of all bodies
whatsoever, signified by the name world, is as much one idea as the idea of any the least particle of matter in it; it
sufficing to the unity of any idea, that it be considered as one representation or picture, though made up of ever so
many particulars.
