It’s not given to human beings to have such talent that they can just know everything about everything all the time. But it is given to human beings who work hard at it — who look and sift the world for a mispriced bet — that they can occasionally find one.
Getting cheated occasionally is the small price for trusting the best of everyone, because when you trust the best in others, they generally treat you best.
The consistency of your endeavors (exercise, companionship, work) is more important than the quantity. Nothing beats small things done every day, which is way more important than what you do occasionally.