Develop success from failures. Discouragement and failure are two of the surest stepping stones to success.

The quotation frames failure not as an endpoint but as raw material for growth: “develop success” suggests an active process of extracting lessons, resilience, and improved strategy from setbacks. By pairing “discouragement” with “failure,” it acknowledges the emotional dimension of defeat and insists that the feeling of being blocked can itself become instructive. The metaphor of “stepping stones” recasts obstacles as sequential supports—each misstep can advance a person toward competence and eventual achievement. In the spirit of self-help and motivational rhetoric often associated with Carnegie, the line encourages persistence, reframing, and learning-oriented thinking rather than shame or paralysis in the face of mistakes.