Anglais example sentences with "schoolmistress"

Necessity is a stern but an excellent schoolmistress.
Translate from Anglais to Espagnol

I refer to the Labiate family,—a family to which the lavenders, the mints, the thymes, and the hyssops belong, with basil, rosemary, and marjoram,—all plants of "gray renown," as he happily remarks in his description of the herbal of his "Schoolmistress."
Translate from Anglais to Espagnol