The phrase "why buy the cow when you can get the milk for free" is a proverb suggesting that if you can access the benefits of a commitment without making the investment, there is no logical reason to pay the cost. Historically applied to relationships and marriage, it argues that a person might avoid a formal commitment if their needs are already being met.
في كتاب الداء والدواء، يوضح الإمام ابن قيم الجوزية أن كثرة الذنوب والمعاصي هي السبب الرئيسي في حرمان الرزق، وتتسبب في إحداث الفساد، ومن ذلك غلاء الأسعار وفساد الأحوال المعيشية.