When I see a spade, I call it a spade. I'm glad to say I have never seen a spade. The man who would call a spade a spade should be compelled to use it. It's the only thing he's fit for.
We coin concepts and we use them to analyse and explain nature and society. But we seem to forget, midway, that these concepts are our own constructs and start equating them with reality.
And tell him it's quite true that the best of the philosophers are of no use to their fellows; but that he should blame, not the philosophers, but those who fail to make use of them.