Wits, savants, humans of the very finest water. It was always a joy to meet with David and John, whether on the hill or in the warmth of an evening in their company. The Twin Towers were/are truly the stuff of legend. No-one who met with them - and with Elizabeth and Janet - left without being enriched by their grace, humility, good humour and mischief. Fire-starters, steadfast walkers, always ready to give encouragement and a helping hand. We shall not see their like again.

Perfectly expressed Humphrey, my sentiments exactly.