http://readingbookstoknowourselves.com/2019/03/29/%cf%8c%cf%81%cf%83%ce%b1-%ce%b4%cf%81%ce%b5%cf%84%ce%ac%ce%ba%ce%b7-%cf%84%ce%bf-%cf%86%ce%b9%ce%bb%ce%af-%cf%84%ce%b7%cf%82-%cf%80%ce%b7%ce%b3%ce%ae%cf%82/

A very interesting book… http://readingbookstoknowourselves.com/2019/03/25/marcus-malte-%cf%84%ce%bf-%ce%b1%ce%b3%cf%8c%cf%81%ce%b9-%ce%b5%ce%ba%ce%b4%cf%8c%cf%83%ce%b5%ce%b9%cf%82-opera-2019/

https://www.youtube.com/watch?v=-whS3PD53qE

http://readingbookstoknowourselves.com/2019/03/25/marcus-malte-%cf%84%ce%bf-%ce%b1%ce%b3%cf%8c%cf%81%ce%b9-%ce%b5%ce%ba%ce%b4%cf%8c%cf%83%ce%b5%ce%b9%cf%82-opera-2019/