P24: If we imagine someone to affect with Joy a thing we hate, we shall be affected with Hate toward him also. On the other hand, if we imagine him to affect the same thing with Sadness, we shall be affected with Love toward him.

Dem.: This proposition is demonstrated in the same way as P22.

Schol.: These and similar affects of Hate are related to Envy which, therefore, is nothing but Hate, insofar as it is considered so to dispose a man that he is glad at another’s ill fortune and saddened by his good fortune.