There’s a perverse pleasure in wading through reviews of books and articles on subjects I know nothing about and may never encounter again. On occasion something hits home. One example: Terry Eagleton in the special Cheltenham Festival Times Literary Supplement edition, on everyone’s favourite subject, post-structuralism:

‘In its curious blend of scepticism and euphoria post-structuralism is a form of libertarian pessimism – one which dreams of a world free from the constraints of norms and institutions, but which is not so incorrigibly naïve as to believe it could ever come about.’  

I could dine out on that one!

‘The revolutionary elan of 1968’ was followed by ‘the disenchanted mood of its political aftermath’. I remember 1968. Too well.

It’s a pattern oft-repeated. More recently we’ve had the frustrations of the Obama years, when ‘yes we can’ didn’t quite happen. (Maybe it never will.) The aftermath of the 1989 and the fall of the Wall. Occupy and the now empty squares of New York and London. Above all the Arab Spring, and its brutal aftermath.

But we won’t and can’t let our optimism die. I’m one of millions now and forever who believe in social justice, opportunity, capability, compassion. We rejoice when we see progress, we’re despondent when we see it pushed back. But we don’t despair.

We don’t of course always agree with each other. Do we work with the system, or oppose it – and by what means? The divide between global and anti-global perspectives is vast. Many (not all) proponents of big government and small government have the same end in view but believe in radically different ways of getting there.

I supported and support Obama, always believed Occupy wasn’t sustainable … Bernie Sanders I admire, Corbyn I don’t. We will bicker and insult and traduce the motives of others, while still aspiring to the same humanity.

And we will undermine each others’ efforts. Refuse to vote for Hillary. Battle it out for the soul and machinery of the Labour Party. And if we’re not careful – and we haven’t been of course – let another party in, a party which doesn’t define compassion and social justice quite as we do… which puts up barriers rather than engage with the world. Abandons institutions rather than seeks to reform them. Follows the populist piper, who advocates easy solutions, and plays to prejudice.

There are many good reasons for retiring to a monastery or a country cottage or sitting room and TV, and disengaging – and yet we hang in there. If we keep open minds, listen to each other, avoid scorn and hubris, remember that we’re ultimately on the same side – then we might just make progress.