The trouble with words is ...

The trouble with words is that you never know whose mouths they've been in.
 Dennis Potter

Quotes from the same author

You have to assert something about yourself in order to be yourself.
 Dennis Potter
It is a dangerous thing to have instant access to your emotions.
 Dennis Potter
I also believe in cigarettes, cholesterol, alcohol, carbon monoxide, masturbation, the Arts Council, nuclear weapons, the Daily Telegraph, and not properly labeling fatal poisons, but above all else, most of all, I believe in the one thing that can come out of people's mouths: vomit.
 Dennis Potter