Hope

A growth mindset -- the belief that abilities can be developed -- is essential to grit. Duckworth explicitly connects Dweck's growth mindset theory to grit development.

Martin Seligman's learned helplessness experiments with dogs in the 1960s demonstrated that animals subjected to inescapable shocks would later fail to escape when escape was possible, a finding Duckworth connects to the opposite of grit.

Carol Dweck's research on growth mindset shows that people who believe abilities can be developed through effort outperform those with a fixed mindset who believe abilities are innate.

Optimistic explanatory style -- attributing setbacks to temporary, specific, and external causes rather than permanent, pervasive, and internal ones -- is a core component of the hope that sustains grit.

Growth mindset and grit are complementary constructs: believing that abilities can be developed (growth mindset) provides the hope needed to persist through setbacks (grit).

Duckworth's definition of hope in grit differs from conventional hope: it is not about wishing for external rescue but about the expectation that your own efforts can improve the future.

The 2016 reinterpretation of learned helplessness by Seligman and Maier showed that passivity is actually the default response to aversive stimulation, and what needs to be learned is control -- not helplessness.