Identify: "There are no walls, there are no bolts, no locks that anyone can put on your mind." (Who said it, who it was said to, and meaning of the quote)

I think the true meaning of this quote is that they are basicly caged and they cant do anything about it. However, I guess Anne's father is trying to convince Anne that because they are caged, nobody will stop anything she will do.

Explanation:

It was Otto Frank