Sex is a classroom of joining (and The Myth of androgynous beings).

...the most effective learning situations are those that contain the most conflict, fear, and anxiety—all aspects of specialness—because they bring out the mind’s deepest recesses of guilt, which we now experience as bodies.

Man, seek no longer the origin of evil; thou thyself art its origin.

Jean-Jacques Rousseau ( 1712 –  1778) was a Genevan philosopher, writer, and composer of 18th-century Romanticism of French expression. His political philosophy influenced the French Revolution as well as the overall development of modern political, sociological, and educational thought.

The first man who, having fenced in a piece of land, said "This is mine," and found people naïve enough to believe him, that man was the true founder of civil society. From how many crimes, wars, and murders, from how many horrors and misfortunes might not any one have saved mankind, by pulling up the stakes, or filling up the ditch, and crying to his fellows: Beware of listening to this impostor; you are undone if you once forget that the fruits of the earth belong to us all, and the earth itself to nobody. — Jean-Jacques Rousseau, Discourse on Inequality, 1754