Borrowed "Men at Arms" from the library when I was, hmm, 13 perhaps (So it's been about 14 years)? Been a fan ever since I read that book and have read most of the books by this point. His writing is unmatched by any other, in terms of dramatic structure, satire and comedy.
Not a single one of his books is a farce, not a single joke removes the impact of the drama. And it's never ever a straight satire, adventure or comedy. Every single element is interwoven and contribute to the whole.
His books taught me so many things. To look more closely at the world around me, but without compromising my view of the whole. To consider the people around me, but not to have it make me shy away from speaking up, to make my own voice heard. To think, about a great many things, but always remember the things that are the most important.
And most of all, no matter how grim the world can be, they have taught me to never forget the feeling of joy. This has been a struggle at times, but his books made it easier to handle.
A joyless existence is not very much of an existence at all and if things are bad, we should strive towards making them better. Strive, to be sensible, realistic and optimistic and never give in to cold cynicism and apathy.
It's not an exaggeration to say that his books have made me a better person.