For a designer, recovering the past means embracing the heritage of traditional knowledge and know-how on which the collective sense of a city has been built, interpreting and respecting the genius loci of which every place is the custodian. Renovating implies a relationship with the spatio-temporal stratification one encounters at the time of intervention; it means establishing a relationship with tomorrow; it requires the ability to know how to design in the contemporary world, guessing what is worth demolishing, recovering, reusing, inventing, and how to eliminate, rebuild, replace, integrate, add or subtract.