The materialist assumption that spiritual substances do not exist is as much an act of faith as the religious belief in the reality of angels.

I wonder if most people ever ask themselves why love is connected with reproduction. And if they do ask themselves about this, I wonder what answer they give.

Emancipation of human labor from economic servitude and exploitation, i.e., from organizations of production in which the conditions of work are determined by a master class who own the means of production, and in which the fruits of work are alienated from workers to the benefit of masters.

Love wishes to perpetuate itself. Love wishes for immortality.

Political democracy cannot flourish under all economic conditions. Democracy requires an economic system which supports the political ideals of liberty and equality for all. Men cannot exercise freedom in the political sphere when they are deprived of it in the economic sphere.

Conjugal love, or the friendship of spouses, persists after sexual desires have weakened, withered, and disappeared.

Teachers may think they are stuffing minds, but all they are ever affecting is the memory. Nothing can ever be forced into anyone's mind except by brainwashing, which is the very opposite of genuine teaching.