'The world is full of beautiful places. Beaches and oceans, cliffs, forests, mountains and valleys, deserts, rivers, islands, harbours and bays. Places where the sky is a perfect half dome, and others where it is pinched between mountains and buildings. These beautiful places have the power to inspire and delight, to provide respite and solace. They are depicted by artists and evoked by poets, and in some cultures assume a spiritual significance beyond their physicality. We flock to them in increasing numbers, maybe sensing that they will not always be there.'  (On suicide watch? The enduring power of nature, Julianne Schultz : Introduction)