The first erroneous assumption is that quality means goodness, or luxury, or shininess, or weight. Quality means conformance to requirements.
"Love is the only thing that makes life possible."
"A story should have a beginning, a middle, and an end—but not necessarily in that order."
说话有分寸则少得罪人;行为有节制则少悔恨;爱慕有节制则要求少;快乐有节制则祸败少;饮食有节制则疾病少。