New knowledge, when to any purpose, must come by contemplation of old knowledge in every matter which concerns thought; mechanical contrivance sometimes, not very often, escapes this rule.
— from A Budget of Paradoxes, Volume I by Augustus De Morgan

In the manner in which the male of this species will perch on the top of some lofty tree, and from that vantage-height scream defiance to all around him, and pursue any large bird that approaches, as described by Mr. Hill, all the audacity and courage of our Kingbird is exhibited.
— from A History of North American Birds; Land Birds; Vol. 2 of 3 by Robert Ridgway