"The more a science advances, the more it is divided into separate branches, and the more these branches, in turn, are further subdivided."

"Political power, properly so called, is merely the organised power of one class for oppressing another."

"As long as the individual is not free, he cannot truly love."

"We are not dealing with a simple economic doctrine but with a new world outlook."

"The emancipation of women will only be possible when woman can take part in production on a large, social scale, and domestic work no longer confines her to a private sphere."