From Wang Wei's (
王维, Tang dynasty)
《相思》:
红豆生南国,春来发几枝。愿君多采撷,此物最相思 - 'Red beans grow in the southern country; come spring, how many branches sprout? I hope you gather many of them - nothing carries longing quite like these.' Four lines that made the
相思豆 (red bean, Abrus precatorius) the Chinese token of love and friendship for a thousand years.