It seems that the necessary thing to do is not to fear mistakes, to plunge in, to do the best that one can, hoping to learn enough from blunders to correct them eventually.
We need not take refuge in supernatural gods to explain our saints and sages and heroes and statesmen, as if to explain our disbelief that mere unaided human beings could be that good or wise.
If the essential core of the person is denied or suppressed, he gets sick sometimes in obvious ways, sometimes in subtle ways, sometimes immediately, sometimes later.
