This is what she wrote to Ellen Nussey:

Haworth, July 18th, 1841.

“We waited long and anxiously for you, on the Thursday that you promised to come. I quite wearied my eyes with watching from the window, eye-glass in hand, and sometimes spectacles on nose. However, you are not to blame . . . and as to disappointment, why, all must suffer disappointment at some period or other of their lives. But a hundred things I had to say to you will now be forgotten, and never said. There is a project hatching in this house, which both Emily and I anxiously wished to discuss with you. The project is yet in its infancy, …. To come to the point: Papa and aunt talk, by fits and starts, of our—id est, Emily, Anne, and myself—commencing a school! I have often, you know, said how much I wished such a thing; but I never could conceive where the capital was to come from for making such a speculation. I was well aware, indeed, that aunt had money, but I always considered that she was the last person who would offer a loan for the purpose in question. A loan, however, she has offered, or rather intimates that she perhaps will offer in case pupils can be secured, an eligible situation obtained, &c. This sounds very fair, but still there are matters to be considered which throw something of a damp upon the scheme. I do not expect that aunt will sink more than 150L. in such a venture; and would it be possible to establish a respectable (not by any means a showy) school, and to commence housekeeping with a capital of only that amount? Propound the question to your sister, if you think she can answer it; if not, don’t say a word on the subject. As to getting into debt, that is a thing we could none of us reconcile our mind to for a moment. We do not care how modest, how humble our commencement be, so it be made on sure grounds, and have a safe foundation. In thinking of all possible and impossible places where we could establish a school, I have thought of Burlington, or rather of the neighbourhood of Burlington. Do you remember whether there was any other school there besides that of Miss —? This is, of course, a perfectly crude and random idea. There are a hundred reasons why it should be an impracticable one. We have no connections, no acquaintances there; it is far from home, &c. Still, I fancy the ground in the East Riding is less fully occupied than in the West. Much inquiry and consideration will be necessary, of course, before any place is decided on; and I fear much time will elapse before any plan is executed …Write as soon as you can. I shall not leave my present situation till my future prospects assume a more fixed and definite aspect.”

From : The Life of Charlotte Brontë, by Elizabeth Gaskell, Chapter X