Wilhelm Haller
Wilhelm "Willi" Haller (born 1935; died 2004) was a Swabian businessman and social entrepreneur and is considered the father of Flexitime of Interflex Datensysteme.
Read more about Wilhelm Haller: Life, Bibliography
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“What is rational is actual and what is actual is rational. On this conviction the plain man like the philosopher takes his stand, and from it philosophy starts in its study of the universe of mind as well as the universe of nature.”
—Georg Wilhelm Friedrich Hegel (1770–1831)