What is a Guru? Let us go back to the Shrutis — "He who knows the secret of the Vedas", not bookworms, not grammarians, not Pandits in general, but he who knows the meaning. यथा खरश्चन्दनभारवाही भारस्य वेत्ता न तु चन्दनस्य। — "An ass laden with a load of sandalwood knows only the weight of the wood, but not its precious qualities"; so are these Pandits. We do not want such. What can they teach if they have no realisation? When I was a boy here, in this city of Calcutta, I used to go from place to place in search of religion, and everywhere I asked the lecturer after hearing very big lectures, "Have you seen God?" The man was taken aback at the idea of seeing God; and the only man who told me, "I have", was Ramakrishna Paramahamsa, and not only so, but he said, "I will put you in the way of seeing Him too". The Guru is not a man who twists and tortures texts. वाग्वैखरी शब्दझरी शास्त्रव्याख्यानकौशलं वैदुष्यं विदुषां तव्दद् भुक्तये न तु मुक्तये। — "Different ways of throwing out words, different ways of explaining texts of the scriptures, these are for the enjoyment of the learned, not for freedom."
- Swami Vivekanadna
The Complete Works of Swami Vivekananda/Volume 3/Lectures from Colombo to Almora/The Vedanta in all its phases