Angela Lee Duckworth: “The key to success is not social intelligence, is not good looks, not physical health and is not IQ. It is grit! Grit is passion and perseverance for a very long term goal. Grit is having stamina. Grit is sticking with your future, day in day out, not just for the week, not just for the month, but for years.”
The theory of Carol Dweck about “the growth mindset” can help teachers to teach grit. “Growth mindset” is the believe that the ability to learn is not fixed. It can change with your effort.