The sheerest and most insensate folly a man can commit towards a woman is to let her know that another woman is cognizant of her jealousy of her. He may give the latter a very keen pleasure; but he gives the former a very keen pang. For

The cause of jealousy a woman may condone; the divulgence of her jealousy she will never forgive.

* * *

What irritates a jealous man is the actions that cause his jealousy;

What irritates a jealous woman is the person who is the cause of her jealousy. In other words,

A jealous swain upbraids his mistress;

A jealous mistress objurgates her rival.

* * *

XI. On Kisses and Kissing

"Sag mir, wer einst das Kussen efrund?
Das war ein gluhend glucklicher Mund;
Er kusste und dachte Nichts daberi."
—Heine