Unfreezing antiques "To be designated a historic site, a building must be a repository of excellent stories," observes Yu Chao-ching. "Otherwise, its architectural workmanship must be remarkable. Its character, special qualities and worth must first be understood." Yu points out that successful architectural preservation is a process of constant change-of preserving what is good in a site, and then adding new good things to it.
老古董解凍了然而，「一座古蹟當初會被指定，一定是房子發生過許多精彩故事，或者它本身的建築工法具有稀有性，它的性格、特質與價值要先被瞭解，」喻肇青提醒，好的古蹟「保育」，就是在變遷的過程中，把好的東西留下，再加入新的好東西。