老子祝你长命百岁孤独终老
[lăo zi zhù nĭ zhăng mìng băi suì gū dú zhōng lăo]
It contains somewhat contradictory elements. The first part ('I wish you to live long') seems sincere; while the latter part ('to grow old alone') carries a more ironic or harsh connotation, wishing solitude on the recipient.