For an introvert his environment is himself and can never be subject to startling or unforeseen change.

Never get involved with someone who wants to change you

Abatement in the hostility of one's enemies must never be thought to signify they have been won over. It only means that one has ceased to constitute a threat.

When coming to the end of an interview: 'You must stop this interview now as I have come to end of my personality'.

Don't do housework: after a few years the dirt doesn't get any worse.

It is not the simple statement of facts that ushers in freedom; it is the constant repetition of them that has this liberating effect. Tolerance is the result not of enlightenment, but of boredom.