"It may be a weed instead of a fish that, after all my labour, I at last pull up."

"Magnetic curves are lines of force; they are not only lines of force but lines of action."

"I am content to be a humble laborer in the field of science."

"The most important instrument a scientist has is his own mind."

"The important thing is to know how to take a hint, to seize upon the suggestion, however small, and to extract its full value."