From sixth grade on I was a real Pillsbury doughboy. Overweight, long hair, thick glasses.
And my dad drilled it in my head, you know, 'If you want it bad enough, and you're willing to make the sacrifices, you can do it. But first you have to believe in yourself.
Conventional dogmas, even if endowed with the authority of an Aristotle - ancient or modern - must be tested vigorously. If they are found wanting, we need not bother with them. But if they are found to be substantially correct, we may not overlook them.