"Between good sense and good taste there lies the difference between a cause and its effect"

This quote by Jean de la Bruyere speaks with the idea that there is a distinction between the cause and the impact of a situation. Common sense is the cause, or the origin of a situation, while taste is the result, or the outcome of the situation. Simply put, common sense is the idea procedure that causes a decision, while taste is the outcome of that decision. For example, if somebody has common sense, they may decide to buy a particular item, however if they have good taste, they will select the product that looks the very best. The quote is emphasizing that good sense and good taste are two distinct concepts, which the distinction in between them is the distinction between the cause and the effect.