It has always been the custom to theorize much and unfortunately to observe but little.
"Makers of Modern Medicine"
James J. Walsh
He was a great friend of Dr. John Hunter, who frequently suggested to him the making of such experiments and observations as were more likely to succeed in the country than in the city, and one cannot help but be struck with the determination evinced all his life to take nothing on authority, but to test everything by actual observation, and above all not to theorize where he did not have the actual data necessary for assured conclusions; and even where he thought he had them, his wonderful faculty for waiting until they had properly matured, and their true significance had become evident, stamped him for all time as a model for scientific investigators.
"Makers of Modern Medicine"
James J. Walsh
"I think you theorize too much, my dear," said Florence.
"With Edge Tools"
Hobart Chatfield-Taylor