Is mankind dumb deaf and blind?

To catagorize all of humanity as being dumb deaf or blind is a stretch which is a sign of the person intelligence who says it.

There are some who are blind to the way things are, and blind literally.

There are some who are deaf to the Words of true, and deaf literally.

And there are some who are dumb to the truth and cant understand it or wont, and literally dumb.

And, there are some who see things the way they are, hear it, and understand it.

You cannot classify humanity one way or another.