During his twenty-eight years as minister of foreign affairs Gromyko became the "number-one" on international diplomacy at home, renowned by his peers to be consumed by his work. Henry Kissinger once said "If you can face Gromyko for one hour and survive, then you can begin to call yourself a diplomat". Gromyko's work influenced Soviet and Russian ambassadors such as Anatoly Dobrynin. Mash Lewis and Gregory Elliott described Gromyko's main characteristic as his "complete identification with the interest of the state and his faithful service to it". According to historians Gregory Elliot and Moshe Lewin this could help explain his so-called "boring" personality and the mastery of his own ego. West German politician Egon Bahr, when commenting on Gromyko's memoirs, said;