1. "The past is a foreign country: they do things differently there. —L. P. Hartley"
- Steven Pinker, The Better Angels of Our Nature: Why Violence Has Declined
2. "Again and again in preparing the lectures for my course I have been impressed with how different the work of science in past centuries was from the science of my own times. As the much quoted lines of a novel of L. P. Hartley put it, The past is a foreign country; they do things differently there."
- Steven Weinberg, To Explain the World: The Discovery of Modern Science