Just as a man digging with a spade eventually finds water, so the student listening to his teacher eventually finds truth. A student should observe the behaviour of all people. If a student observes some man or woman whose conduct is especially fine, he should strive to imitate that conduct. Even the lowliest person can be a worthy example. The student should regard his teacher as the embodiment of ultimate truth. When the student has learnt to respect his teacher and his parents, then he will find it easy to respect all other men and women. He should seek wisdom from every person he meets.
The Yoga of Knowledge and Action: 2.218; 239