Lady Susan by Jane Austen Letter 20 Page 5

match for Frederica, that I have always observed his attachment with the greatest pleasure; and am persuaded that you and my brother will give the alliance your hearty approbation. I have never before mentioned the likelihood of its taking place to anyone, because I thought that whilst Frederica continued at school it had better not be known to exist; but now, as I am convinced that Frederica is too old ever to submit to school confinement, and have, therefore, begun to consider her union with Sir James as not very distant, I had intended within a few days to acquaint yourself and Mr. Vernon with the whole business.

I am sure, my dear sister, you will excuse my remaining silent so long, and agree with me that such circumstances, while they continue from any cause in suspense, cannot be too cautiously concealed.