Numbers rule the universe. ——Pythagoras Mathematics, the queen of science; number theory, the queen of mathematics. ——C?6?1F?6?1 Gauss God created the integers, and all other numbers are man-made. —— L? 6? 1 Kronecker God is an arithmetician —— Jacobi A mathematician who is not somewhat poetic can never become a complete mathematician. ——Weierstrass The science of pure mathematics, in its modern stage of development, can be said to be the most original creation of the human spirit. ——Whitehead Countability rules the entire world of quantity, and the four arithmetic operations can be regarded as all the equipment of a mathematician. ——Maxwell Number theory is the oldest branch of human knowledge, yet some of its most profound secrets are closely connected with its most ordinary truths. ——Smith Infinite! No other question has touched the human heart so deeply. ——D?6?1 Hilbert Every new group discovered is mathematical in form, because we can have no other guidance. ——C?6?1G?6?1 Darwin The great architecture of the universe is now beginning to appear in the face of pure mathematicians. ——J?6?1H?6?1 Kings It is a reliable rule that when the author of a mathematical or philosophical work writes in vague and esoteric terms, he is talking nonsense. ——A?6?1N?6?1 Huaidehai Give me five coefficients and I will draw an elephant; give me six coefficients and the elephant will wag its tail. ——A?6?1L?6?1 Cauchy Pure mathematics is the magician's real magic wand. ——Novales If anyone does not know that the diagonals of a square and the same sides are incommensurable quantities, then he does not deserve the title of human being. ——Plato The simple composition of whole numbers has been the source of new life for mathematics for centuries. ——G?6?1D?6?1 Birkhoff The more detached a mathematician is, the better. ——Anonymous The incomparable permanence and omnipotence of mathematics and its independence from time and cultural background are direct consequences of its nature. ——A?6?1 Ebo