Hardy's A Mathematician's Apology is available online. (It's in the public domain in Canada, although not in the US.)
I'll refrain from commenting -- obviously I have thoughts, but I have things I really should be doing instead of trying to articulate them (like preparing for the class I'm teaching tomorrow morning!) -- and just let Hardy's work, one of the classic answers to questions such as "What is mathematics?" and "Why do mathematics?", stand on its own.