So the first thing: wisdom as such is truth, it cannot be untrue. Just as light is light and cannot be dark, just as life is life and cannot be death, just as love is love and cannot be hate. If it is hate, it is not love.
Wisdom is intrinsically true because it is an existential experience. It is not something known from others, it is not something gathered from the scriptures; it is something that grows in your heart. It is a growth, not an accumulation. It is experience, not information.
Knowledge makes you learned, wisdom makes you innocent. Knowledge is very ego-fulfilling, very ego-strengthening. The ego feeds on knowledge; it is the best tonic for the ego. But wisdom happens only when ego has disappeared; wisdom appears only on the death of the ego. The death of the ego is the birth of wisdom.
Mind is interested in knowledge not in wisdom, because for wisdom you will have to create a space called no-mind. And, naturally, mind is afraid of your ever becoming interested in wisdom, because mind does not want to commit suicide.
Sannyas is a suicide of the mind, so is meditation, so is wisdom. These are different names for the same phenomenon, different aspects of the same diamond.
Knowledge depends on words. You can easily become knowledgeable by sitting in a library, but you cannot become wise that way. To become wise you will have to be in communion with a wise man. For knowledge all that is required of you is that you should be a student, that you should be full of questions, inquiries; you should be able to learn from scriptures, books, teachers, universities, libraries. Your memory becomes more and more rich, your biocomputer becomes full of information, but wisdom is not arrived at that way.
Wisdom is more or less a love affair with a master. One has to be a disciple, not only a student. The student keeps a distance from the master. For him the master is only a teacher; he is interested in the master because of his teaching. Really he is interested in the teaching, not in the being of the master. The disciple is not interested in teaching because he has come to understand one thing: that knowledge can be taught but wisdom can only be caught.
Wisdom is contagious. You have to be available to a master, to his being. He has become a fire, the candle of your heart is still unlit. If you become available to the fire of the master you can also become a lit candle, you can also become a flame.
To be aflame with silence, with joy, is wisdom. It is not through logic but through love. It is not through words but through a wordless state called meditation, or a state of no-mind, satori, samadhi.
Beware of learning, otherwise you may never become wise. To be knowledgeable is very easy; it is not risky, it is safe. To move into the dimension of wisdom is risky; it is going into the unknown, into the uncharted. Great courage is needed, guts are needed.