I have nothing to declare except my genius. (Oscar Wildeupon arriving at U.S. customs 1882)

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

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

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