Change Life, 01.06.2015. It’s What You Can Contribute // Youtube // youtube.com/watch?v=WRYRBGX4lVM.
254
Newport C. A Steve Jobs Quote Perfectly Sums Up Why Passion Isn’t Enough for Career Success // Business Insider, 24.02.2015 // .
255
Olds J., Milner P. Positive Reinforcement Produced by Electrical Stimulation of Septal Area and Other Regions of Rat Brain // Journal of Comparative and Physiological Psychology, 1954; Olds J. Pleasure Centers in the Brain. Scientific American, 1956.
