si monumentum requiris, circumspice

Latin phrase

si mo·​nu·​men·​tum re·​qui·​ris, cir·​cum·​spi·​ce ˌsē-ˌmȯ-nu̇-ˌmen-tu̇m-re-ˈkwē-ris kir-ˈku̇m-spi-ke 

: if you seek (his) monument, look around

—epitaph of Sir Christopher Wren in St. Paul's, London, of which he was architect