A cup is useful only when it is empty; and a mind that is filled with beliefs, with dogmas, with assertions, with quotations, is really an uncreative mind.
You can have power over people as long as you don't takeeverything away from them. But when you've robbed a man of everything, he'sno longer in your power.
Believing that soom good can be derived from every event is a better preposition than that everything happens for the best, which is assuredly does not.