Grit: The power of passion and perseverance: http://bit.ly/1XBHWfI- Angela Lee Duckworth · Psycholog

Grit: The power of passion and perseverance: http://bit.ly/1XBHWfI- Angela Lee Duckworth · Psychologist. At the University of Pennsylvania, Angela Lee Duckworth studies intangible concepts such as self-control and grit to determine how they might predict both academic and professional success.- Persian translation by soheila Jafari. Reviewed by Leila Ataei.