孙洪伊是辛亥革命后活跃的宪政活动家,为反袁护国和护法斗争做出了贡献。通过对共和宪政的探索与实践,他完成了由温和立宪派到革命派的转变,成为民主派中一风云人物。这一转变是其宪政追求合乎逻辑发展的结果,符合时代发展潮流,具有爱国进步性。 Sun Hongyi was an active constitutional activist after the Revolution of 1911, and made contributions to the struggle against Yuan and protecting the country. Through the exploration and practice of republican constitutional government, he completed the transformation from modest constitutionalism to revolutionary and became a prominent figure among democrats. This change is the result of the logical development of its constitutional pursuit and is in keeping with the trend of development in the times and patriotism and progress.