One verse

Srimad Bhagavatam 5.1.14

5.1.14

यद्वाचि तन्त्यां गुणकर्मदामभि: सुदुस्तरैर्वत्स वयं सुयोजिता: । सर्वे वहामो बलिमीश्वराय प्रोता नसीव द्विपदे चतुष्पद: ॥ १४ ॥

yad-vaci tantyam guna-karma-damabhih sudustarair vatsa vayam suyojitah sarve vahamo balim isvaraya prota nasiva dvi-pade catus-padah

yat
of whom
vaci
in the form of Vedic instruction
tantyam
to a long rope
guna
of quality
karma
and work
damabhih
by the ropes
su-dustaraih
very difficult to avoid
vatsa
my dear boy
vayam
we
su-yojitah
are engaged
sarve
all
vahamah
carry out
balim
orders to please Him
isvaraya
unto the Supreme Personality of Godhead
protah
being bound
nasi
in the nose
iva
like
dvi-pade
to the two-legged (driver)
catuh-padah
the four-legged (bulls)

My dear boy, all of us are bound by the Vedic injunctions to the divisions of varnasrama according to our qualities and work. These divisions are difficult to avoid because they are scientifically arranged. We must therefore carry out our duties of varnasrama-dharma, like bulls obliged to move according to the direction of a driver pulling on ropes knotted to their noses.