 Of these Modes, there are two sorts, which deserve distinct consideration. First, there are some that are only variations, or different combinations of the same simple Idea, without the mixture of any other, as a dozen or score; which are nothing but the ideas of so many distinct unities being added together, and these I call simple Modes, as being contained within the bounds of one simple Idea. Secondly, There are others, compounded of Ideas of several kinds, put together to make one complex one; v.g. Beauty, consisting of a certain combination of Colour and Figure, causing Delight to the Beholder; Theft, which being the concealed change of the Possession of any thing, without the consent of the Proprietor, contains, as is visible, a combination of several Ideas of several kinds; and these I call Mixed Modes. (II.12.5, N: 165)