Leo Nikolaevich Tolstoy quotes (Russian moral Thinker, Novelist and Philosopher, notable for his influence on Russian literature and politics. 1828-1910)
Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)
Mark Twain quotes (American Humorist, Writer and Lecturer. 1835-1910)
Robert M. Pirsig quotes