These again are copied by the memory and imagination, and become ideas; which perhaps in their turn give rise to other impressions and ideas.

So that the impressions of reflexion are only antecedent to their correspondent ideas; but posterior to those of sensation, and derived from them.

The examination of our sensations belongs more to anatomists and natural philosophers than to moral; and therefore shall not at present be entered upon.

And as the impressions of reflexion, viz.

passions, desires, and emotions, which principally deserve our attention, arise mostly from ideas, it will be necessary to reverse that method, which at first sight seems most natural; and in order to explain the nature and principles of the human mind, give a particular account of ideas, before we proceed to impressions.