Meaning of “The world is sown with good; but unless…”

Love of intellectual and manual labour becomes evidence of Keller’s active optimism, connecting outlook with her willingness to contribute despite limits.

Keller separates the number of available ways to contribute from the amount of meaningful work still possible within those ways.

Keller values participation in useful work even when her individual share is limited, locating dignity in contribution rather than scale alone.

Optimism is defined here as willingness to participate and act, sharply distinguishing Keller’s position from passive expectation that circumstances will improve on their own.

Work is presented as participation in life rather than only a transaction for wages or status.

Ordinary tasks receive full seriousness because Keller measures duty by how faithfully work is done rather than by the prestige attached to it.