- NASA image courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Holli Riebeek.
- An intricate interaction of waves shapes the clouds in the North Sea, making patterns that echo basic principles of nature.
- Lord–bondsman dialectic (Wikipedia)
The lord–bondsman dialectic (sometimes translated master–slave dialectic) is a famous passage in Georg Wilhelm Friedrich Hegel’s Phenomenology of Spirit. It is widely considered a key element in Hegel’s philosophical system, and it has heavily influenced many subsequent philosophers.