“Lighting your way to a better future : Speech delivered by Mr N R Mandela at launch of Mindset Network," July 16, 2003 at db.nelsonmandela.org. ; Cited in: Nelson Mandela, ‎S. K. Hatang, ‎Sahm Venter (2012) Notes to the Future: Words of Wisdom. p. 101.”

Source: Wikiquote