A Voice from the Past - Chesterton

But the new rebel is a sceptic, and will not entirely trust anything, He has no loyalty; therefore he can never be really a revolutionist. And the fact that he doubts everything really gets in his way when he wants to denounce anything. For all denunciation implies a moral doctrine of some kind, and the modern revolutionist doubts not only the institution he denounces, but the doctrine by which he denounces it.

G. K. Chesterton, 1874-1936, Orthodoxy, The Suicide of Thought, (Dover Publications, 2004, p. 33)

Should a Christian be a revolutionist? What is the right way to go about changing society?