Summary
This quote suggests that the true value of a belief lies in its practical application. It implies that the effectiveness and impact of a belief can only be determined by observing how well it works in real-life situations. Merely accepting a belief based on its appeal or popularity is not enough; it must be put into action and produce tangible results to prove its validity. This quote emphasizes the importance of practicality and evidence-based reasoning in evaluating the soundness of a belief.