Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. (Sherlock Holmes (by Sir Arthur Conan Doyle, 1859-1930))

It’s kind of fun to do the impossible. (Walt Disney)

Whether you think that you can, or that you can’t, you are usually right. (Henry Ford)

Each problem that I solved became a rule which served afterwards to solve other problems. (Rene Descartes, Discours de la Methode)

Not everything that can be counted counts, and not everything that counts can be counted. (Albert Einstein)