ABSTRACT
For though motion, as known by the developed mind, cannot be conceived without accompanying conceptions of space and time; it does not therefore follow that motion, as known by the undeveloped mind, cannot be conceived without such accompaniments. Respecting motion through it only are changes in consciousness originally produced, through it only can relations of sequent positions among states of consciousness be disclosed; and that for the same reason, through it only can be disclosed the relations of coexistent positions. At the same time we know that whether motion is or is not originally cognizable in any other way, it is from the beginning cognizable through the changes of consciousness it produces. The relation of coexistent positions is necessarily disclosed by a comparison of experiences: the ideas of space, time, and motion that are evolved together.
