The analyses of a text #1

The protagonist, Philip, who was born with a club foot, moved in with his uncle Mr. Carey after his mother's death.
He goes to King's School at Tercanbury.

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He spent a couple of terms with Winks in the Upper Third. Winks, with his weary manner and his drooping eyelids, looked infinitely bored. He did his duty, but he did it with an abstracted mind. He was kind, gentle, and foolish. He had a great belief in the honour of boys; he felt that the first thing to make them truthful was not to let it enter your head for a moment that it was possible for them to lie. "Ask much," he quoted, "and much shall be given to you." Life was easy in the Upper Third. You knew exactly what lines would come to your turn to construe, and with the crib that passed from hand to hand you could find out all you wanted in two minutes; you could hold a Latin Grammar open on your knees while questions were passing round; and Winks never noticed anything odd in the fact that the same
incredible mistake was to be found in a dozen different exercises. He had no great faith in examinations, for he noticed that boys never did so well in them as in form: it was disappointing, but not significant. In due course they were moved up, having learned little but a cheerful effrontery in the distortion of truth, which was possibly of greater service to them in after life than an ability to read Latin at sight.
[Of Human Bondage by Somerset Maugham]
1. I'd like to know what "your" and "you" refers to.
2. I'd like to know why it is "in form," not "in class."
3. I'd like to know why it is "but," not "and."
4. I'd like to know why it is "after life," not "latter life."