But it was ever thus, all through my life: whenever I have diverged from custom and principle and uttered a truth, the rule has been that the hearer hadn't strength of mind enough to believe it.
But speak the truth, and all nature and all spirits help you with unexpected furtherance. Speak the truth, and all things alive orbrute are vouchers, and the very roots of the grass underground there do seem to stir and move to bear you witness.
Don't imagine that you'll discover {the truth} by accumulating more knowledge. Knowledge creates doubt, and doubt makes you ravenous for more knowledge. You can't get full eating this way.