Despite the rarity of the sage, I would like to paint a rough picture of him, just to give you an idea of how inhuman he really is, or perhaps to alter your conception of what it means to be human. He is a solitary being, though he is also at home in a crowd. Altogether he has a complete lack of human values. He loves nothing, therefore he hates nothing. Happiness is repugnant to him, so he never suffers. He depends on nothing, and questions all human motivation.
But don't take my word for it. Only a sage can recognize a sage, just as a specialist in a field of work knows his subject. So the first step in the search for wisdom is to cultivate your own. Nor will you find it anywhere outside your own mind. If you try to find wise men, you will create your own, and your mind will rot with their false wisdom. For where would you find a man of true wisdom? Even if you did meet one, how would you recognize him? Having disregarded your own mind in favour of your search, you will be penniless. No doubt you would judge the genuine sage to be destructive of human morals, cynical, negative, and quite mad. Moreover, how would you possibly be able to benefit from his teachings?
Thus you must discover the guru within your own mind. In the end you will find there is no other way. You stand alone with your own brain tucked securely away inside your skull. There is just you and your thought.