22. All these are modes of ideas got from sensation and reflection.
If I have dwelt pretty long on the consideration
of duration, space, and number, and what arises from the contemplation of them,--Infinity, it is possibly no more
than the matter requires; there being few simple ideas whose modes give more exercise to the thoughts of men
than those do. I pretend not to treat of them in their full latitude. It suffices to my design to show how the mind
receives them, such as they are, from sensation and reflection; and how even the idea we have of infinity, how
remote soever it may seem to be from any object of sense, or operation of our mind, has, nevertheless, as all our
other ideas, its original there. Some mathematicians perhaps, of advanced speculations, may have other ways to
introduce into their minds ideas of infinity. But this hinders not but that they themselves, as well as all other men,
got the first ideas which they had of infinity from sensation and reflection, in the method we have here set down.
