“Some will believe anything...and some will believe nothing.”
“believe nothing”
I think what you meant to say is that there are those who trust nothing. And they are not wrong in that.
I agree with you about trusting nothing. Things are almost never what they appear to be on the surface.
That said, the truth is out there. And it is a lot stranger than it appears on the surface.
BTW, I was using the word "believe" as "accept"...not "believe in."