Mahatma Gandhi (1965). “Glorious Thoughts of Gandhi: Being a Treasury of about Ten Thousand Valuable and Inspiring Thougths of Mahatma Gandhi, Classified Under Four Hundred Subjects”
Judith Orloff (2004). “Positive Energy: 10 Extraordinary Prescriptions for Transforming Fatigue, Stress, and Fear into Vibrance, Strength, and Love”, p.25, Harmony