He starts with his own account of the climb. However, he only does it with a few sentences, and then, as soon as he mentions the breathing problems, he proceeds with explaining how Hillary's account was not completely accurate. At the very beginning, the reader gets to understand that this text's purpose is not to describe the climb, but to supplement (or correct) another person's account.
The first quote suggests that writing makes us smarter, whilst the other suggests that writing does the exact opposite. This would be contrasting the two. Comparing the two would be that the two quotes are both about writing.
Elizabeth says she is unable to judge him or forgive him.
I only read the lottery but a theme could be, not all traditions are good,
attendence is suppose to be spelled attendance
appearence is suppose to be spelled appearance