ATHENS, Oct. 29 (Xinhua) -- Welcoming outgoing German Chancellor Angela Merkel on her last official visit here on Friday, Greek Prime Minister Kyriakos Mitsotakis said that she was "the voice of reason and stability." "She may have been unfair at times but decisive nevertheless, like in 2015, when she refused to see Greece expelled from Europe," Mitsotakis said during their joint press conference. Mitsota