‘Don’t cry because it’s over. Smile because it happened.’ Dr. Theophrastus Seuss

'Don't cry because it's over. Smile because it happened.' Dr Seuss

A famous American writer, Theodor Seuss Geisel, was famous for writing books for children. According to wikipedia, he lived between March 2, 1904 – September 24, 1991).  He has a website which has information on wide variety of books, toys inspired by his work.