I have recently tired my hand at writing
No, I’ve checked, it was a typo. But what a lovely one, he’s trying to point out that this classical liberal thing is the way to make the poor richer, to allow the dispossessed to possess and so on and the slip from I have tried to I have tired my hand is simply lovely.
He’s not entirely right as I’m not and nor are you. But try it out, anyone capable of creating, by a slip, a phrase that I’m going to steal (and oooh, I will) is worth a try.