《管子·地数》
我们掌握号令要有缓有急，掌握物价要有高有低，然后天下的宝物都可以为我所用。
令有徐疾，物有轻重，然后天下之宝壹为我用。
Our control of commands should be quick and slow, and our control of prices should be high and low, and then the treasures of the world can be used for me.