And yet no two children are alike, and if any schoolmaster tried to write an exhaustive treatise on the subject of education, it would have to contain as many chapters as there are boys and girls in the world, and it would not be one of the thinnest books ever published.
The ducal twins from the beginning exhibited great differences.
Wendelin's hair was straight and, save for the grey lock, which hung over his left temple like a mark of interrogation, jet black; George, on the contrary, had curly brown hair.

Their size remained equal until their seventh year, when the younger brother began to outstrip the older.

They loved one another very fondly, but the amusements that pleased one failed to attract the other; even their eyes seemed to have been made on different patterns, for many things that seemed white to George appeared black to his brother.
Both received equal care and were never left alone.

The older brother found this but natural, and he liked to lie still, and be fanned, or have the flies brushed away from him, and to have some one read fairy stories, which he loved, aloud to him until he dozed off to sleep.

It was astonishing how long and how soundly he could sleep.