The most extraordinary succession

From the foreword of Making The Most Of Every Move:

I think it is a mistake to cling to a region because it has given you a delightful experience once. You merely accumulate dead possessions. Don't cling to the old because it made you glad once; go on to the next, the next region, the next experience. We have left behind us the most extraordinary succession of delightful dwelling-houses each of which in turn once meant everything to us, but not one of which we now regret having left. --Alfred North Whitehead