He who loves industry will strengthen his toil and lend it influence.

Looking toward the home, love fulfills the law of helpfulness.

Looking toward the weak and poor, love fulfills the law of service and sympathy.

Looking toward a great crisis for humanity, love fulfills the law of martyrdom.
Just as summer fulfills all ripeness and growth for seed and root and tree, so love fulfills all laws for self and man and the all-loving God.
After thirty-six years of tireless toil Herbert Spencer has brought to a conclusion the labors of a lifetime.

His final volume places the capstone on the structure of his philosophy.