The Republic by Plato Part 10 Page 39

Few persons ever reflect, as I should imagine, that from the evil of other men something of evil is communicated to themselves. And so the feeling of sorrow which has gathered strength at the sight of the misfortunes of others is with difficulty repressed in our own.

How very true!

And does not the same hold also of the ridiculous? There are jests which you would be ashamed to make yourself, and yet on the comic stage, or indeed in private, when you hear them, you are greatly amused by them, and are not at all disgusted at their unseemliness; — the case of pity is repeated; — there is a principle in human nature which is disposed to raise a laugh, and this which you once restrained by reason, because you were afraid of being thought a buffoon, is now let out again; and having