Dante's doctrine of punishment presupposes certain primary truths which the Church proclaims today as she did in Dante's day. According to the Florentine's creed, man must answer to God for his moral life because he has free will. He cannot excuse his evil deed on the ground of necessity. Even in the face of planetary influence and of temptation from within, by his evil inclinations, and from without by solicitation of other agents man has still such discernment between good and evil and such power to make choice freely, that moral judgment with him is free. "Who hath been tried thereby and made perfect," says Holy Writ, "he shall have glory everlasting. He that could have transgressed, and hath not transgressed and could do evil things, and hath not done them." (Eccli., XXXI, 10.) Against this doctrine of free will the sociology, the philosophy and the medical science of the present day contend with a theory which minimizes man's accountability for sin if it does not wholly excuse him as the victim of heredity, environment or society. Literature also, as reflected not only in the Greek tragedies but in the writings of authors from Shakespeare to Shaw portray the evil doer as the victim of fate or determinism. Against all such theories and views Dante appears as the fearless, uncompromising champion of the doctrine of the greatness of man in the exercise of the divine gift of Free Will. His own life, showing how he had won victory over the forces of poverty and persecution, is symbolic of the glorious truth he would teach; viz., that man, endowed with free will and animated with the grace of God, is master of his destiny and cannot be defeated even by principalities and powers. So he tells us, "And free will which if it endure fatigue in the first battles with the heavens, afterwards if it be well nurtured, conquers everything." (Purg., XVI, 76.) He makes Beatrice testify to the supremacy of the will: "The greatest gift which God in His bounty bestowed in creating and that which He prizes most, was the freedom of will with which the creatures that have intelligence--they all and they alone--were endowed." (Cf. Purg., XVIII, 66-73.)