Jalal ad-Din Muhammad Rumi also known as Rumi, one of the greatest poets to have ever lived.
Jalal ad-Din Muhammad Rumi
I keep this book next to my bed. Drink up, give it as a gift, and be sure to pass it on. There are tons of books out there with fragments of Truth in it. This is one of them. Get it here.
Best translated copy in print.
Another good one is The Prophet by Kahlil Gibran