It is hubris, claim the critics of 'absolutism', to suppose that we could ever even approximate to a true description of how the world anyway is. It is bad faith or 'bullshit', respond 'absolutists', to suppose - as the rhetoric of postmodernism implies - that we could seriously live and act with the thought that truth and value are simply our own projections. An attractive feature of 'ineffabilism', as I see it, is that it evades these accusations.

What impressed me about Plato and Sartre was their conviction that we should live our lives in the light of big truths about reality and human existence.

I rather shared Nietzsche's conception of the kind of individual that an ideal education should be cultivating. 'Authenticity' is not Nietzsche's term, but as used by some existentialists, it nicely captures what Nietzsche admired - the resolve of an individual person to forge his or her own 'table of values', to be emancipated from strait-jacketing conventions, traditions, and ideologies. As embodied in the 'Overman', authenticity is the antidote to 'bad' nihilism.

It's as if, for Schopenhauer and perhaps Kant, the mind is there up and running, equipped with its categories and concepts that it then projects or smears, as it were, over what impinges upon it from the outside. This is not the image you find in, for example, Chuang Tzu: minds and nature are inseparably fused in an ever-changing whole of experience that, so to speak, constantly wells up from an indescribable source in a process that Daoists call 'the way' or 'the course'.

Between nature and music there seems to be an elective affinity: they fit together, and when they do experiences of an ineffable kind are generated.

I'm very sceptical about the prospects for 'big' environmental causes - 'saving the planet', halving the world's population, ending the exploitation of animals, and so on - but a person can ask him- or herself how he or she personally may exercise compassion or humility towards animals, vegetal life and so on.

How people make gardens is bound to reflect a way of experiencing the natural world, while at the same time this experience of nature is bound to reflect a culture - ways of painting nature, for example, or representing nature in literature, or of course making gardens.