Thinking can think only about the known—it can chew the already chewed. Thinking can never be original. How can you think about the unknown? Whatsoever you can manage to think will belong to the known. You can think only because you know. At the most, thinking can create new combinations. You can think about a horse who flies in the sky, who is made of gold, but nothing is new. You know birds who fly in the sky, you know gold, you know horses; you combine the three together. At the most, thinking can imagine new combinations, but it cannot know the unknown.