Just because Galileo was a heretic doesn't make every heretic a Galileo.

Clearly, many branches of science need an exquisite precision of timekeeping and the infinitesimal decimals of calibration, so space launches, for example, are not scheduled for leap-second dates. But society as a whole neither needs that obsessive time measurement nor is well served by it.

Human language is lit with animal life: we play cats-cradle or have hare-brained ideas; we speak of badgering, or outfoxing someone; to squirrel something away and to ferret it out.

Language is wild - you can't fence it or tell it what to do - and it's the same with people. Even under the worst excesses of Stalinism or consumerism, the human spirit will still express itself.

All definitions of wilderness that exclude people seem to me to be false. African 'wilderness' areas are racist because indigenous people are being cleared out of them so white people can go on holiday there.

We are animal in our blood and in our skin. We were not born for pavements and escalators but for thunder and mud.

Singing with others is an unmediated, shared experience as each person feels the same music reverberating in their individual bodies. Singing is part of our humanity; it is embodied empathy.