Exceed your customers' expectations. If you do, they'll come back over and over. Give them what they want — and a little more.
自然状态有一种自然法规来管理它,这使每个人都有义务,而这种法则就是理性,它教导所有愿意咨询它的人...没有人应该侵犯他人的生命、健康、自由或财产。