《礼记·礼器》
四时各有不同的生物，土地各有不同的出产，五官各有不同的功能，万物各有不同的用途。
是故天时有生也，地理有宜也，人官有能也，物曲有利也。
Different seasons have different types of organisms, different lands have different products, different organs have different functions, and all things have different uses.