A rich person utilizes his wealth in entertainment, but a devotee utilizes it to worship the deity of the Lord.
Ordinary knowledge obtained by a university education pertains only to matter. Knowledge means knowing the distinction between spirit and matter. In modern education there is no knowledge about spirit; they are simply taking care of the material elements and bodily needs.
The gigantic industrial enterprises are products of a godless civilization, and they cause the destruction of the noble aims of human life.
Srimad Bhagavatam 1.8.40,
One cannot calculate the amount of loss there is in wasting valuable time. Either materially or spiritually, one should be very alert in utilizing the time which he has at his disposal.
Srimad Bhagavatam 2.7.15,