"Why will you think so? It must be his own doing. -- He is his own master. But you do not know all. I will read you the passage which particularly hurts me. I will have no reserves from you." "Mr. Darcy is impatient to see his sister, and to confess the truth, we are scarcely less eager to meet her again. I really do not think Georgiana Darcy has her equal for beauty, elegance, and accomplishments; and the affection she inspires in Louisa and myself is heightened into something still more interesting, from the hope we dare to entertain of her being hereafter our sister. I do not know whether I ever before mentioned to you my feelings on this subject, but I will not leave the country without confiding them, and I trust you will not esteem them unreasonable. My brother admires her greatly already, he will have frequent opportunity now of seeing her on the most intimate footing, her relations all wish the connection as much as his own, and a sister's partiality is not misleading me, I think, when I call Charles most capable of engaging any woman's heart. With all these circumstances to favour an attachment and nothing to prevent it, am I wrong, my dearest Jane, in indulging the hope of an event which will secure the happiness of so many?"

请教老师：

1） I will have no reserves from you. 我对你毫无保留。为什么用介词from，而不是for呢？不能理解。

2） from the hope we dare to entertain of her being hereafter our sister. 这句中的介词from是“原因”吗？