Parents have become so convinced that educators know what is best for their children that they forget that they themselves are really the experts.
There's so much left to achieve, there's so much more to do, there's so much that has not been done.
What convinces is conviction. Believe in the argument you're advancing. If you don't you're as good as dead. The other person will sense that something isn't there, and no chain of reasoning, no matter how logical or elegant or brilliant, will win your case for you.

