english: Peter Drucker was a professor of philosophy before becoming involved in business, and this is what Peter Drucker says: "Planning is actually incompatible with an entrepreneurial society and economy."
non_english: Peter Drucker iş hayatına atılmadan önce felsefe profesörüydü. Peter Drucker şöyle derdi: "Planlama aslında bir girişimin topluluğu ve ekonomisi ile uyuşmaz."