There are indeed some people who, in their generosity of spirit, burn with a desire to institute wholesale reforms whenever they come across situations which show scant regard for justice or are wholly out of keeping with its claims. They tackle the problem with such impetuosity that one would think they were embarking on some political revolution.
We would remind such people that it is the law of nature that all things must be of gradual growth. If there is to be any improvement in human institutions, the work must be done slowly and deliberately from within. Pope Pius XII expressed it in these terms: "Salvation and justice consist not in the uprooting of an outdated system, but in a well designed policy of development. Hotheadedness was never constructive; it has always destroyed everything. It has inflamed passions, but never assuaged them. It sows no seeds but those of hatred and destruction. Far from bringing about the reconciliation of contending parties, it reduces men and political parties to the necessity of laboriously redoing the work of the past, building on the ruins that disharmony has left in its wake."
-Blessed John XXIII, Pacem in Terris