Note 1: (disinterested) Disinterested is a word which frequently causes problems for the modern reader, because the definition of the word is in the process of shifting, as it has shifted several times in the past. In Austen's day, this word would have meant: "without thought of personal gain, unselfish". Today, the word is taking on the meaning: "not interested."
The American Heritage Dictionary gives this usage note:
In traditional usage, disinterested can only mean "having no stake in an outcome," as in "Since the judge stands to profit from the sale of the company, she cannot be considered a disinterested party in the dispute." But despite critical disapproval, disinterested has come to be widely used by many educated writers to mean "uninterested" or "having lost interest," as in "Since she discovered skiing, she is disinterested in her schoolwork." Oddly enough, "not interested" is the oldest sense of the word, going back to the 17th century. This sense became outmoded in the 18th century but underwent a revival in the first quarter of the early 20th. Despite its resuscitation, this usage is widely considered an error. In a 1988 survey, 89 percent of the Usage Panel rejected the sentence "His unwillingness to give five minutes of his time proves that he is disinterested in finding a solution to the problem." This is not a significantly different proportion from the 93 percent who disapproved of the same usage in 1980.