Compassion is Love, insofar as it so affects a man that he is glad at another’s good fortune, and saddened by his ill fortune.

Exp.: As far as Envy is concerned, see P24 S and P32 S. These are the affects of Joy and Sadness that are accompanied by the idea of an external thing as cause, either through itself or accidentally. I pass now to the others, which are accompanied by the idea of an internal thing as cause.