Should a Muslim Follow A Particular Madhhab?

In this book, the author has widely described the main principle of Taqleed. He says that Allah and the Prophet Muhammad (saw) have not ordered us to follow any opinions and interpretations. So there is possibility of being correct or incorrect in the opinions, because there are many issues on which Imams had different views and they explained them according to their own reasons and speculations, but the real and true Islam is based on the Book (Quran) and the Prophet?s SUNNAH.