Introduction The essays that compile this short book have been written in the last couple of years, but only recently I took the decision to gather them together into a pamphlet. I decided to do so in order to present my subjective view on the political legacy of Cornelius Castoriadis in the 21st century, since I believe that his thought is already influencing a significant amount of social movements and struggles across the world. But nonetheless I cannot but notice that Castoriadis has remained relatively neglected, comparing to other political thinkers and philosophers. Because of this I have dedicated several essays on his importance, which now I present in a more systematized manner in this publication. I have thought on compiling these texts into a pamphlet in the past, but the main reason to finalize it at this particular moment is the Covid-19 pandemic and the fact that half of the planet has been placed under a quarantine. I finally found the time to revisit this old idea of mine. Simultaneously, now is the right moment for free e-books to be published, as most of us have plenty of time because of the quarantine. And we should use the maximum of this time to educate ourselves. It is in such moments that the limitations of capitalism and state management have been exposed and we should indulge into alternative visions and political projects. We should patiently arm ourselves with knowledge and visionary thinking. I would like to express my gratitude to Ioanna Maravelidi for introducing me to the work of Castoriadis ten years ago. Then a huge thank you to Mark Mason for editing and prefacing this pamphlet and to George Chelebiev for the design of the current publication. Also, I have to thank David Ames Curtis for the help he provided in my first steps into the philosophy of Castoriadis and the books 10