People willing to trust others are themselves more trustworthy and well-adjusted

Evidence

In general, they have found that those who are more willing to trust other people are likely to be equally trustworthy in that they are less likely to lie, cheat, or steal. They are also less likely to be unhappy or maladjusted, and are typically more liked by their friends and colleagues. — Diego Gambetta, Trust - Making and Breaking Cooperative…, 525

Categorization

• XREF: Trust-begets-trustworthiness counterfactual undercuts Hobbesian assumptions about the doctor’s wife’s isolated position — perhaps she stays honest partly because she must trust-give without return. — connects to: Suspicion of others’ trustworthiness is inherently well grounded; Parents should instill optimism about trust because optimists learn faster; Trusting others and trusting oneself develop together. — Anthony Giddens, The Consequences of Modernity, 231 (+2 more)
• corroborated: 3 independent passages support this claim — Diego Gambetta, Trust - Making and Breaking Cooperative…, 525

Broader Connections

• Trusting others and trusting oneself develop together. #corroborates (0.85) — Anthony Giddens, The Consequences of Modernity, 231
• Extending trust can create the trustworthy behavior it presumes #qualifies (0.82)