Fear ↔ Courage A pair of opposite categories of Roget's Thesaurus (1911, nos. 860, 861): "Fear" and "Courage". Places between the poles: 25 - "Afraid", 50 - "Fear"…
Feudal society Land belongs to landowners-seigneurs, peasants are attached to it and bear obligations — corvée and quitrent; power and property are structured…
Fifth technological paradigm (1970s–2010s) Core: microelectronics, computer technology, software, telecommunications, robotics.