The text on the picture is as far as I know an actual christian saying. And, to be frank, it’s one I agree with, except I see it from the other side, so to speak.
Don’t teach your children myths like christianity, islam, and such, but teach them how to become interested in learning, and to do research when someone claims something to be a fact.
My parents thaught me both christianity and research, and also how to decide for myself what I believe after having done the research. Never to take anything for gospel (pun intended) before researching it, made me an atheist.
I don’t think that was my parents intention, but it was what happened.