“Materialistic persons, who are too much engaged in material enjoyment and who do not know anything beyond their material experiences, are carried by the whims of material nature. They live a life characterized by chewing the chewed, and they are controlled by their uncontrolled senses. Thus they go down to the darkest regions of hellish life.” (Shrila Prabhupada, Shrimad Bhagavatam, 4.26.8 Purport)