Whether covetousness is the root of all sins?

Objections

Objection 1 : It would seem that covetousness is not the root of all sins. For covetousness, which is immoderate desire for riches, is opposed to the virtue of liberality. But liberality is not the root of all virtues. Therefore covetousness is not the root of all sins.
Objection 2 : Further, the desire for the means proceeds from desire for the end. Now riches, the desire for which is called covetousness, are not desired except as being useful for some end, as stated in Ethic. i, 5. Therefore covetousness is not the root of all sins, but proceeds from some deeper root.
Objection 3 : Further, it often happens that avarice, which is another name for covetousness, arises from other sins; as when a man desires money through ambition, or in order to sate his gluttony. Therefore it is not the root of all sins.