The first question:
What is the greatest harm that the so-called religions have done to humanity?
The greatest harm that the so-called religions have done to humanity is to prevent humanity from finding the true religion. They pretended to be the true religion. All the religions of the world have conditioned the human mind from the very childhood to believe that this is the true religion: the religion in which you are born.
A Hindu believes his religion is the only true religion in the world; all other religions are false. The same is the case with the Jew, with the Christian, with the Buddhist, with the Mohammedan. They are in agreement on one point, and that is that there is no need to find the true religion; the true religion is already available to you – you are born into it.
I call this their greatest harm because without authentic religion man can only vegetate, cannot really live. He remains a superficial being; he cannot attain to any profundity, authenticity. He knows nothing about his own depths. He knows about himself through others, what they say. Just the way you know your face through the mirror, so you are acquainted with yourself through other people’s opinions; you don’t know yourself directly. And the opinions that you depend on are of those people who are in a similar situation: they don’t know themselves.
These religions have created a society of blind people, and they go on telling them “You don’t need eyes.” Jesus had eyes – what is the need for Christians to have eyes? All that you have to do is to believe in Jesus; he will lead the way to paradise, you simply have to follow. You are not allowed to think, because thinking may take you astray. It is bound to take you on different paths than they want you to go, because thinking means sharpening your doubt, your intellect. And that is very dangerous for the so-called religions. Those religions want you dull, dead, somehow dragging; they want you without intelligence. But they are clever in using good names: they call it faith. It is nothing but the suicide of your intelligence.
A true religion will not require faith from you. A true religion will require experience. It will not ask you to drop your doubt, it will help you to sharpen your doubt so that you can inquire to the very end.
The true religion will help you to find your truth.