It is not only a matter of not caring who knows - it is also a matter of knowing who cares.
Idries ShahTo be obsessed by the idea of freedom, for instance, is itself a form of slavery. Such people are in the chains of the hope of freedom, and are therefore able to do little else than struggle with them.
Idries ShahIf you want to make an ordinary man happy, or think that he is happy, give him money, power, flattery, gifts, honours. If you want to make a wise man happy - improve yourself!
Idries Shah