Aggressiveness is not the main trouble with the human species, but rather an excess capacity for fanatical devotion.
Arthur KoestlerThe principle mark of genius is not perfection but originality, the opening of new frontiers.
Arthur KoestlerIn the index to the six hundred odd pages of Arnold Toynbee's A Study of History, abridged version, the names of Copernicus, Galileo, Descartes and Newton do not occur yet their cosmic quest destroyed the medieval vision of an immutable social order in a walled-in universe and transformed the European landscape, society, culture, habits and general outlook, as thoroughly as if a new species had arisen on this planet.
Arthur Koestler