politician和statesman的字面意义都是"政治家"，
但实际上politician往往用于贬义，表示"政客"之意，双解词典对其解释是"a person who takes part in or is much interested in politics, who is in politics merely for personal gain and self-interest"，表示褒义的"政治家"，通常用statesman，其英语释义为："a person with wisdom and skill in managing the affairs of state"
望采纳啦！！