One verse

Srimad Bhagavatam 12.7.13

12.7.13

वृत्तिर्भूतानि भूतानां चराणामचराणि च । कृता स्वेन नृणां तत्र कामाच्चोदनयापि वा ॥ १३ ॥

vṛttir bhūtāni bhūtānāṁ carāṇām acarāṇi ca kṛtā svena nṛṇāṁ tatra kāmāc codanayāpi vā

vṛttiḥ
the sustenance
bhūtāni
living beings
bhūtānām
of living beings
carāṇām
of those that move
acarāṇi
those that do not move
ca
and
kṛtā
executed
svena
by one’s own conditioned nature
nṛṇām
for human beings
tatra
therein
kāmāt
out of lust
codanayā
in pursuit of Vedic injunction
api
indeed
vā
or

Vṛtti means the process of sustenance, by which the moving beings live upon the nonmoving. For a human, vṛtti specifically means acting for one’s livelihood in a manner suited to his personal nature. Such action may be carried out either in pursuit of selfish desire or in accordance with the law of God.