After faith the next prize which is offered as destined for the man who acquires virtue by the gift of nature, as being victorious without a struggle, is joy. For this man is named as the Greeks would call him, Laughter, but as the Chaldaeans would entitle him, Isaac. And laughter is an emblem in the body of that unseen joy which exists in the mind. And joy is the most excellent and the most beautiful of all the pleasant affections of the mind, by means of which the whole soul is in every part entirely filled with cheerfulness, rejoicing in the Father and Creator of all men and things, namely, in God, and rejoicing also in those things which are done without wickedness, even though they may not be pleasant, as being done virtuously, and as contributing to the duration of the universe. For as in great and dangerous sicknesses a physician sometimes actually takes away parts of the body, aiming at ensuring the sound health of the rest, and as when storms arise the pilot often throws overboard the cargo, out of a prudent regard to the safety of the men sailing in the ship; and yet the physician is not blamed for the mutilation of the body, nor the pilot for the loss of the cargo, but on the contrary both of them are praised as having seen and ensured what was advantageous in preference to what was pleasant; so in the same manner we must always look with proper admiration at the nature of the entire universe, and we must be pleased with all things which are done in the world without intentional wickedness, inquiring not whether any thing has been done which is not altogether pleasant, but whether the world, like a city enjoying good laws, is guided and governed in a manner calculated to ensure its safety. This man, therefore, is happy in no less a degree than the one whom I mentioned before, inasmuch as he is free from all depression or melancholy, and as he enjoys a life exempt from sorrow and exempt from fear, having no connection, not even in a dream, with any painful or austere plans of life, because every part of his soul is wholly occupied by joy.