A fool is one who goes on trusting; a fool is one who goes on trusting against all his experience. You deceive him, and he trusts you; and you deceive him again, and he trusts you; and you deceive him again, and he trusts you. Then you will say that he is a fool, he does not learn. His trust is tremendous; his trust is so pure that nobody can corrupt it.
Be a fool in the Taoist sense, in the Zen sense. Don´t try to create a wall of knowledge around you. Whatsoever experience comes to you, let it happen, and then go on dropping it. Go on cleaning your mind continuously; go on dying to the past so you remain in the present, herenow, as if just born, just a babe.
In the beginning it is going to be very difficult. The world will start taking advantage of you...let them. They are poor fellows. Even if you are cheated and deceived and robbed, let it happen, because that which is really yours cannot be robbed from you, that which is really yours nobody can steal from you.
And each time you don´t allow situations to corrupt you, that opportunity will become an integration inside. Your soul will become more crystallized.