No, I don't understand him, but he is worth listening to.

But he’s sincere. Which doesn’t mean he knows what he’s talking about.

Close? ah, he is close! He can hold his tongue well. That man’s dumbness is wonderful to listen to.”

“There’s so much sense in it. Every moment of it is brimmen over wi’ sound understanding.

If you do not understand a man you cannot crush him. And if you do understand him, you probably will not.

He seems to have this strange difficulty grasping that I actually mean what I say.

He doesn't know what he means, and doesn't know he doesn't know.

I can explain it to you, but I can't comprehend it for you.

I must be stupid," I said. "I don't doubt that his talk is full of profound hidden truths, but I find it terribly hard to understand."
Dikaiarchos laughed. "I'll tell you a secret, Chares. I cannot understand it, either."
"You, sir?"
"Yes. It may be that we are both stupid, or it may be that there is nothing to understand. It is a good practical rule that, if a man cannot explain himself in terms that any reasonably intelligent listener can comprehend, he doesn't know what he is talking about himself.

It is only the things we don't understand that have any meaning. Man woke up in a world he did not understand, and that is why he tries to interpret it.

Will you understand what I'm going to tell you? ... No, you're not going to be able to understand it. ... That is because I don't understand it. Nobody does.

He's the one
Who likes all our pretty songs
And he likes to sing along
And he likes to shoot his gun
But he knows not what it means.

Being able to communicate with someone doesn’t necessarily mean that you understand them.

Listening doesn't mean trying to understand. Anything, however trifling, may be of use one day. What matters is to know something that others don't know you know.

It is difficult to get a man to understand something, when his salary depends on his not understanding it.