"Nature composes some of her lovliest poems for the microscope and the telescope."

"Science is a way of thinking much more than it is a body of knowledge."

"Science and technology revolutionize our lives, but memory, tradition and myth frame our response."

"Surgery is the red flower that blooms among the leaves and thorns that are the rest of medicine."

"Vivisection is a social evil because if it advances human knowledge, it does so at the expense of human character."

"Science... never solves a problem without creating ten more."

"The nineteenth century believed in science but the twentieth century does not."

"A fact is a simple statement that everyone believes. It is innocent, unless found guilty. A hypothesis is a novel suggestion that no one wants to believe. It is guilty, until found effective."

"The great secret of doctors, known only to their wives, but still hidden from the public, is that most things get better by themselves; most things, in fact, are better in the morning."

"The uniformity of earth's life, more astonishing than its diversity, is accountable by the high probability that we derived, originally, from some single cell, fertilized in a bolt of lightning as the earth cooled."