Good dictionary files?

As many people say, a good password cracker is very dependent on the dictionary file(s). When one has a very good dictionary file(s), the chances of password being cracked is bigger. I am wondering if someone can tell me where I can get good dictionary file(s). Search on the web result to nothing. I have one large dictionary file (about 14Mb) to check it, but I still not feel comfortable to say it's a good one. This might be off topic from cryptography, but until we can reverse engineer (decrypt the crypt or crypt(3)) functions, nothing we can do but to rely on those good dictionaries. Thank you and I apologize for anyone who might get offended by my post. Regards, Sent.