清浊，小大，短长，疾徐，哀乐，刚柔，迟速，高下，出入，周疏，以相济也。
解释：清澈与浑浊，细微与宏大，短小与绵长，急促与舒缓，哀伤与快乐，刚硬与柔软，迟滞与快速，高昂与低徊，呼出与收缩，周密与疏朗，因此而相互辅助。
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