“Naught’s had, all’s spent,
Where our desire is got without content.
‘Tis safer to be that which we destroy
Than by destruction dwell in doubtful joy.”
– Macbeth (Act III Scene II)
If you get what you want and you’re still not happy, you’ve spent everything and gained nothing. It’s better to be the person who gets murdered than to be the killer and be tormented with anxiety.