Thinkers Philosophers 3 Plato 2 AL-Qabbani 1 Al-Boustani 1 Alfred Binet 1 Andres Bello 1 Antonio Sergit 1 Aristotle 1 Carl Rogers 1 Cicero 1 Dante 1 Environmentalists 1 Erasmus 1 Famous scientists, thinkers 1 Famous thinkers 1 Great Thinkers 1 Mao Zedong 1 Otto Salomon 1 Peter Noikov 1 Political ideologies 1 Rabindranath Tagore 1 Scientists, Thinkers 1 World famous thinkers 1