Such men as Uncle John are striking examples of certain qualities; and of those particular qualities which conduce to success in life. Their highest praise (perhaps there is no higher praise in the world) is their unflinching integrity. But we can not bring ourselves to think them--on the whole--models for imitation. After all, there is selfishness at the bottom of their first motives, and this quality grows with their growth, and strengthens with their strength, till, in their old age, they are impatient at all the enjoyments of youth. The hardships of their younger days are not only to be pitied for the pain they must have inflicted at the time, but because they have closed up all the avenues through which the gentler, nobler, and more generous sympathies of our nature find their way into the heart. Their want of education has not been of the mind alone, but of the affections; and as it is ten thousand times more difficult to learn a language or a science in old age than in youth, so it is infinitely more difficult (if it be not impossible) to teach the science of the affections, and the language of the heart, to the old man whose youth has known nothing of either. Affliction and adversity teach oft-times sympathy and benevolence; but to do so they must have followed on happier times, and not have been a birth-portion. You may praise and respect "Uncle Johns," but you can not love them--neither can they love you. DARLING DOREL. Dorothea Sibylla, Duchess of Brieg, was born at Cöln, on the River Spree, in Prussia, on the 19th of October, 1590. She was the daughter of Elizabeth of Anhalt, and of John George, Margrave and Elector of Brandenburg, of the old princely Ascanian race. At the death of her husband in 1598, the widowed margravine retired to Crossen to superintend her daughter's education. In due time, suitors were not wanting for the hand of young Dorothea Sibylla: among others, the King of Denmark; but he sued in vain. Dorothea, at length, fixed her affection on John Christian, Duke of Liegnitz and Brieg, who enjoyed a great reputation for virtue, ability, and integrity. To him, after a short courtship. Dorothea was married on the 12th of December, 1610, at Crossen; and reached Brieg--the small capital of her future dominions--on the first of January in the following year.