Impressions

Sensation

Flow directly from unknown causes outside the mind. 

Includes colors, tastes, etc., as well as bodily pleasure and pain.

Distinguished from ideas by their stronger force and vivacity.

Ideas
 

Copies of Impressions.
 
  Distinguished from impressions by their weaker force and vivacity. 

[For each subdivision under impressions, to the left, there is a corresponding subdivision under ideas, namely, a copy of that sort of impression.]

Caused by impressions or ideas within the mind. 

Includes the passions, emotions, and desires. 

Caused directly by the sensation of pain or pleasure.

Exs.: desire, aversion, grief, joy, hope, fear, despair, and security.

E.g., desire is a direct response to the pleasure we expect from the object. 

Caused indirectly by the sensation of pain or pleasure in conjunction with some other idea or impression. 

Exs.: pride, humility, ambition, vanity, love, hatred, envy, pity, malice, generosity. 

E.g., pride is a passion that has as its object the self, and which is experienced as caused by pleasure afforded by something associated with the self (such as one’s intellect, physique, property, or family) that has an admirable quality. Pride, therefore, requires the ideas of self, the cause, and its quality.