Today, we will look at Modernism through the lens of the recent encyclical by Pope Francis, Fratelli Tutti, and how this encyclical promotes the French revolutionary ideas of liberty, equality, and fraternity. We’ll see how these three ideas, though they sound very nice, are not based in Catholic doctrine, and in fact, were condemned by Pope St. Pius X just over 100 years ago, when French Catholics formed the Sillon, a very popular Catholic social movement. This movement was flawed, and condemned, because it tried to marry the principles of the revolution to the Kingship of Christ.