1. Famous Quotes at BrainyQuote.
www.brainyquote.com
. Accessed 05 Apr 2017.
2. Plutchik R. Human emotions have deep evolutionary roots, a fact that may explain their complexity and provide tools for clinical practice. The Nature of Emotions. 2001;89(4):344–50.
3. Mayer JD, Salovey P. What is emotional intelligence? In: Salovey P, Sluyter D, editors. Emotional development and emotional intelligence: implications for educators. New York: Basic Books; 1997. p. 3–31.
4. Goleman D. Working with emotional intelligence. Bloomsbury: St Ives; 1998.
5. Bridge of Spies. 2015.
http://www.quotes.net/mquote/981862
. Accessed 05 Apr 2017.