Passage Summary: If you take a side too early, you'll stop being objective, so you shouldn't form a strong opinion until you've looked at all the facts that might prove you wrong.

Conclusion: It is advisable to avoid committing to a strong position on an issue until one has thoroughly and neutrally evaluated the evidence against that position.

Reasoning: Strong positions create a bias that leads people to ignore conflicting evidence, but full understanding requires an impartial look at that very evidence.

Analysis: The argument establishes a conditional relationship: to achieve 'full understanding,' one must be 'impartial.' Since 'strong positions' destroy 'impartiality,' the author concludes that the 'strong position' must wait until after the 'impartial' work is done. Look for an answer that mirrors this 'don't do X until you've done Y' structure. It's essentially a rule for intellectual due diligence to prevent confirmation bias.