Deuterium

«Fall seven times and stand up eight». (Japanese Proverb).
«You can never be overdressed or overeducated.» (Oscar Wilde).

Dr. Seuss wrote Green Eggs and Ham as part of a bet.
The Cat in the Hat was published in 1957 and used a mere 236 words to tell the quirky feline's fantastical story. However, the book's author, Dr. Seuss, topped that feat with even fewer words when his publisher, Bennett Cerf, bet him that he couldn't write a book using 50 words or less. Green Eggs and Ham hit bookstores three years later and uses exactly 50 words.