Only by way of liberation from the “self-evident” and confronting the system itself can we arrive at an understanding of the world. Education is always the liberation from self-evidence. Education is therefore a matter of Weltbildung—world education.

A Plea for a New Performance Culture – Greta Thunberg and Luisa Neubauer won’t save the world. Yet, the outcry of the youth shows the urgency involved, and science points to the need for action. This is a model that has, indeed, led to some sensitization with respect to the climate crisis. But it also shows that fifty-two years after the first Earth Day, we’re rolling out our own changes far too slowly.

The question “What is real?” can be traced back to the shadows in Plato’s cave. Two thousand years later, René Descartes lacked knowledge about arguing against an evil deceiver feeding us the illusion of sensation. Descartes’ epistemological concept later led to various theories of what our sensory experiences actually are.