The correct answer in this case is liberalism.
Socialism is the opposite as it entails (Among other things) the idea of fast changes, if need be with revolution. Neither does utilitarianism talk about social progress through reform.
Libertarians talk exactly about what the question is about; one of the main tennets of liberalism is that they prefer and would like to witness social change through reforms.
He was a scholar who wrote to defend religious ideals. The Great Schism of 1378 differed from the one in 1054 because. it was based on a power struggle.
Peter the great accomplished many things. he brought western influence into Russia. He reduced the influence of Boyars, cut off beards and made them wear clothing that did not cover the legs. He converted to Christianity and the first to bring Russia out of isolation. He traded with other western countries.
I would have to say the answer is Patriotism