"You can develop good judgement as you do the muscles of your body - by judicious, daily exercise"

This quote by Grenville Kleiser is suggesting that judgement, like physical strength, can be established through practice and repetition. Simply as one would exercise their muscles to become stronger, one can exercise their judgement to end up being wiser. This exercise can take the type of making choices, reflecting on the outcomes of those decisions, and gaining from the experience. Through this process, one can become more skilled at making sound judgements. This quote is encouraging us to make the effort to practice and refine our judgement, as it is an invaluable skill that can be established with time. It is a tip that judgement is not something that is innate, however rather something that can be cultivated through effort and devotion.