Panathinaikos Athlitikos Omilos (, literally in English: Panathenaic Athletic Club or Panathinaikos AC) is a major Greek multi-sport club based in the City of Athens. It has the trifolium (shamrock) as its official emblem, symbol of harmony, unity, nature, and good luck. Green (usually used dark shades of the colour by the club) and white are their colours (green for health, youth and nature, such as physiolatry, and white for virtue). Panathinaikos is one of the most successful multi-sport club and one of the oldest clubs in Greece. The name "Panathinaikos" (which can literally be translated as "Panathenaic", which means "of all Athens") was inspired by the ancient work of Isocrates Panathenaicus, where the orator praise the Athenians for their democratic education and their military superiority, which use it for benefit of all Greeks.