Greatest lie and highest wisdom

Reading this from The Alchemist by Paulo Coelho:
“Everyone believes the world's greatest lie..." says the mysterious old man.

"What is the world's greatest lie?" the little boy asks.

The old man replies, "It's this: that at a certain point in our lives, we lose control of what's happening to us, and our lives become controlled by fate. That's the world's greatest lie.”

-

Whilst my conviction will be:

The greatest lie within a lie is that we thought we are controlled by fate, and the fate has been changed every moment by our present moment's action. The greatest realization didnt come to prove one is a fool, but to make a fool become wiser.