There is nothing more dangerous than a person with only one right answer.
Professional opinion is skeptical about anything that doesn't fit in with the version of reality it has been programmed to believe in. The skepticism comes from a lack of understanding and the need to defend the status quo and not from actual knowledge of the subject.
Dogmatists have one advantage: they are poor listeners.
Narrowness of mind is often the cause of obstinacy; we do not easily believe beyond what we see.
I think if you're open-minded, the road will take you where it takes you. If you're closed, you might not get to go where the road is heading.
We want to have our beliefs, and we want to enforce them on everyone else, but we don't want to have to think about everything that comes along with it.
There is no man so blind as one who has made up his mind.
There's nothing you can't prove if your outlook is only sufficiently limited.
Being right can stop all the momentum of a very interesting idea.
