Nostradamus Quatrains are sealed at the Vatican, and were acquired by the Catholic Church almost 400 years ago. Recently, a Lost book was apparently found of these writings and was presented to the general public to review prior to it's concealment with the Vatican.
There is no proof offered throughout the bible that Nostradamus was a prophet. His name is not mentioned, nor predicted to come forth and give information as the Prophets of the bible have. Although controversial, his writings with interpretations have shocking clarity. This is also debated because of the interpretation given by those who have followed his writings, and have applied Eschatology to them.
Nostradamus may have had a gift to see the future. His writings were purposefully written in Quatrains to shield the true meaning of his time. The Catholic Church at this time was executing people who had a gift of prophecy and seers of the future, and declared them as witches. His wife was stricken with the Black Plague, and he went into seclusion during this time to write the Quatrains and visions. The Bible is the only source, and might we add, the ONLY true source of predictions of our future. Jesus said "Let no man deceive you" as his first warning in Matthew Chapter 24. We as Christians must be mindful of this passage, for no other source of any text tells us anything else that we need to know.