“It isn't just the past we remember, it's the future too.Fifty per cent of memory is devoted not to what has already happened,but to what will happen next. Appointments, anniversaries, meetings,all the rolling engagements and plans,all the hopes and dreams and ambitions which make up any human life- we remember what we did and also what we will do. Only the knife edge of the present is 'hard' to any degree.Past and future are things of the mind,and a mind can be changed.”