Facts always yield the place of honor, in conversation, to thoughts about facts
 Oliver Wendell Holmes Sr., The Autocrat of the Breakfast-Table (1858). copy citation

Context

“When a person is really full of information, and does not abuse it to crush conversation, his part is to that of the real talkers what the instrumental accompaniment is in a trio or quartette of vocalists. —What do I mean by the real talkers?—Why, the people with fresh ideas, of course, and plenty of good warm words to dress them in. Facts always yield the place of honor, in conversation, to thoughts about facts; but if a false note is uttered, down comes the finger on the key and the man of facts asserts his true dignity. I have known three of these men of facts, at least, who were always formidable,—and one of them was tyrannical.” source