For your reading pleasure, two quick snippets from a longer interview:
"It isn’t inevitable that human beings degrade these systems; we simply
have to understand them. It is our understanding, our consciousness of
these systems that determines what they look like. What I’ve noticed is
that degraded landscapes are coming from human ignorance and greed. If
you change that scenario to one of consciousness and generosity, you get
a completely different outcome."
"Landscape restoration does not only change ecological function, it
changes the socio-economic function and when you get down to it, it
changes the intention of human society. So if the intention of human
society is to extract, to manufacture, to buy and sell things, then we
are still going to have a lot of problems. But when we generate an
understanding that the natural ecological functions that create air,
water, food and energy are vastly more valuable than anything that has
ever been produced or bought and sold, or anything that ever will be
produced and bought and sold – this is the point where we turn the
corner to a consciousness which is much more sustainable."
Read more John D. Liu's thoughts here.