Honey comes out of the air. At early dawn the leaves of trees are found bedewed with honey. Whether this is the perspiration of the sky or a sort of saliva of the stars, or the moisture of the air purging itself, nevertheless it brings with it the great pleasure of its heavenly nature. It is always of the best quality when it is stored in the best flowers.
– Pliny the Elder
Natural History, Book XI, Chapter 12.