One should not entertain desire. Attachment to desire brings on sorrow. When riches have been acquired one should devote it to virtuous purposes. One should even then relinquish desire.
न कामाननुरुद्धयेत दुःखं कामेषु वै रतिः। प्राप्यार्थमुपयुञ्जीत धर्मं कामान् विसर्जयेत्॥