6. Compounding.
The next operation we may observe in the mind about its ideas is Composition; whereby it puts
together several of those simple ones it has received from sensation and reflection, and combines them into
complex ones. Under this of composition may be reckoned also that of enlarging, wherein, though the
composition does not so much appear as in more complex ones, yet it is nevertheless a putting several ideas
together, though of the same kind. Thus, by adding several units together, we make the idea of a dozen; and
putting together the repeated ideas of several perches, we frame that of a furlong.
