He who can not live well to-day, will be less qualified to live well to-morrow.--MARTIAL. Men are harassed, not by things themselves but by opinions respecting them.--EPICTETUS. [From the Dublin University Magazine.] MEMOIRS OF THE FIRST DUCHESS OF ORLEANS. While the fortunes of the last Duchess of Orleans are still in uncertainty, it may not be unpleasing to read something of the family and character of the first princess who bore that title. The retrospect will carry us back to stirring times, and make us acquainted with the virtues and sufferings, as well as the crimes, which mark the family history of the great European houses. The story of Valentina Visconti links the history of Milan with that of Paris, and imparts an Italian grace and tenderness to the French annals. Yet although herself one of the gentlest of women, she was sprung from the fiercest of men. The history of the rise and progress of the family of Visconti is, in truth, one of the most characteristic that the Lombardic annalists have preserved. The Sforzias, called Visconti from their hereditary office of _Vicecomes_, or temporal vicar of the Emperor, were a marked and peculiar race. With the most ferocious qualities, they combined high intellectual refinement, and an elegant and cultivated taste, in all that was excellent in art, architecture, poetry, and classical learning. The founder of the family was Otho, Archbishop of Milan at the close of the 13th century. He extended his vicarial authority into a virtual sovereignty of the Lombard towns, acknowledging only the German Emperor as his feudal lord. This self-constituted authority he transmitted to his nephew Matteo, "Il grande." In the powerful hands of Matteo the Magnificent, Milan became the capital of a virtual Lombardic kingdom. Three of the sons of Matteo were successively "tyrants" of Milan, the designation being probably used in its classical, rather than its modern sense. Galeazzo, the eldest, was succeeded by his son Azzo, the only one of the male representatives of the Visconti who exhibited any of the milder characteristics befitting the character of a virtuous prince. Luchino, his uncle and successor, was, however, a patron of learning, and has had the good fortune to transmit his name to us in illustrious company. At his court, in other respects contaminated by vice, and made infamous by cruelty, the poet Petrarch found a home and a munificent patron. Luchino cultivated his friendship. The poet was not above repaying attentions so acceptable by a no less acceptable flattery. Petrarch's epistle, eulogizing the virtues and recounting the glory of the tyrant, remains a humiliating record of the power of wealth and greatness, and the pliability of genius.