Quote of the day
Absence of occupation is not rest,
A mind quite vacant is a mind distressed.
János Bolyai

Born: December 15, 1802
Died: January 27, 1860 (aged 57)
Bio: János Bolyai or Johann Bolyai, was a Hungarian mathematician, one of the founders of non-Euclidean geometry a geometry that differs from Euclidean geometry in its definition of parallel lines.