Llancarvan became a great workshop, where numerous monks, subject to a very severe rule, bowed their bodies under the yoke of continual fatigue, clearing the forests, and cultivating the fields when cleared; it was besides, a great literary and religious school, in which the study of the Holy Scriptures held the van, and was followed by that of the ancient authors, and their more modern commentators. Cadoc loved to sum up, chiefly under the form of sentences in verse and poetical aphorisms, the instructions given to his pupils of the Llancarvan cloister. A great number of such utterances have been preserved. We instance a few. "Truth is the elder daughter of God. Without light nothing is good. Without light there is no piety. Without light there is no religion. Without light there is no faith. The sight of God, that is light." "Without knowledge, no power. Without knowledge, no wisdom. Without knowledge, no freedom. Without knowledge, no beauty. Without knowledge, no nobility. Without knowledge, no victory. Without knowledge, no honour. Without knowledge, no God." "The best of attitudes is humility. The best of occupations is work. The best of sentiments, pity. The best of cares, justice. The best of pains, peacemaking. The best of sorrows, contrition. The best of characters, generosity." When one of his disciples asked him to define love, he answered, "Love, it is Heaven." "And hate?" asked his disciple. "Hate is hell." "And conscience?" "It is the eye of God in the soul of man." "The best of patriots," said S. Cadoc, "is he who tills the soil." When a chief at the head of a band of robbers, came to pillage Llancarvan, S. Cadoc went against him with his monks armed with their harps, chanting and striking the strings. Then the chief recoiled, and left them unmolested. Another chief, enraged at Cadoc receiving his son into his monastery, came with a force to reclaim the youth and destroy the cloister. Cadoc went to meet him, bathed in sunshine, and found the chief and his men groping in darkness. He gave them light, and they returned ashamed to their homes. Cadoc had the happiness of assisting in the conversion of his father. In the depths of his cloister he groaned over the rapines and sins of the old robber from whom he derived his life. Accordingly he sent to his father's house three of his monks, to preach repentance. His mother, the beautiful Gwladys, was the first to be touched, and it was not long before she persuaded her husband to agree with her. They called their son to make to him a public confession of their sins, and then, father and son chanted together the psalm, "Exaudiat te Dominus"--"The Lord hear thee in the day of trouble." When this was ended, the king and queen retired into solitude, establishing themselves in two cabins on the bank of a river, where they worked for their livelihood, and were often visited by their son.