All advice sums to zero

Move fast and break things. Measure twice, cut once. Follow your passion. Passion is a dangerous guide. Be consistent. Know when to quit. For every piece of advice that has ever helped someone, there exists an equally quotable piece of advice recommending the exact opposite, and both are backed by successful people who swear by them.

This is not a paradox to be resolved. It is a feature of how advice works. Advice is a correction applied to a specific person in a specific situation, later stripped of its context and sold as universal truth. The correction only makes sense if you know which direction the person was already erring.

Advice is a vector, not a point

The useful question is never "is this advice true?" It is "which way am I currently wrong, and does this advice push me back toward center?" The reckless person and the timid person need opposite instructions, and handing each of them the other's medicine makes both of them worse.

Once you see advice as directional, the contradictions stop being confusing. They sum to zero across the population because they are meant to. Your only job is to know which half of the population you are standing in.