True respect means taking other people's beliefs seriously and assuming they are adult and intelligent enough to be able to cope with it if you tell them, clearly and civility, why you think they are totally, utterly and disastrously wrong.

True humility is expressed in deeds, not words. The humble are those who truly walk the same ground as everyone else - not necessarily with grovelling, hunched backs, but certainly not lording it over others, either.

The mark of a mature, psychologically healthy mind is indeed the ability to live with uncertainty and ambiguity, but only as much as there really is. Uncertainty is no virtue when the facts are clear, and ambiguity is mere obfuscation when more precise terms are applicable.

There are many things you shouldn't measure. Don't, for example, try to measure how much you love your wife!

Daily life is better when it involves interactions with real people who have a personal investment in their labour, like shopkeepers, than it is with someone 'just doing my job' or the infernal self-checkout machine.

When you try to translate any kind of real-life problem into a neat logical form, you're almost always simplifying it. We need a kind of blend - we need to use not just tools of logic, which are important and valuable - I'm not denying that, but also tools of judgement, and of inductive and abductive reasoning which can also inform.

I think that a lot of social movements, political movements, powerful ones - certainly they form, collectively, an idea of the truth which becomes hard to question. It becomes a dogma, and from the inside it starts to look like common sense.