William Blake quotes (English visionary Mystic, Poet, Painter and Engraver. 1757-1827)
Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)
Seneca quotes (Roman philosopher, mid-1st century AD)
Carl Gustav Jung quotes (Swiss psychiatrist, Psychologist and Founder of the Analytic Psychology, 1875-1961)
Albert Einstein quotes (German born American Physicist who developed the special and general theories of relativity. Nobel Prize for Physics in 1921. 1879-1955)