Since periods of great change, such as the present one, come so rarely in human history, it is up to each of us to make the best use of our time to help create a happier world.
Men subsequently put whatever is newly learned or experienced to use as a plowshare, perhaps even as a weapon: but women immediately include it among their ornaments.
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.
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.