Sometimes what we see as a closed mind is just a mind that looks at things from a different angle. This is a good trait, as then things can be seen that before were hidden from view. Because his knowledge and view differs from your own does not make him close minded, and to see it like this may instead make you close minded.

Thankyou PaulHart as well!
The2nd ammendment, it makes all the others possible. <///<