“Observation: I can't see a thing. Conclusion: Dinosaurs.”

The Philosophy of Physical Science (1938)
Context: For the truth of the conclusions of physical science, observation is the supreme Court of Appeal. It does not follow that every item which we confidently accept as physical knowledge has actually been certified by the Court; our confidence is that it would be certified by the Court if it were submitted. But it does follow that every item of physical knowledge is of a form which might be submitted to the Court. It must be such that we can specify (although it may be impracticable to carry out) an observational procedure which would decide whether it is true or not. Clearly a statement cannot be tested by observation unless it is an assertion about the results of observation. Every item of physical knowledge must therefore be an assertion of what has been or would be the result of carrying out a specified observational procedure. <!-- p. 9

Source: Red Dragon

Source: This Lullaby

"Bill Nye Debates Ken Ham" (February 4, 2014)

Source: It Worked For Me: In Life and Leadership (2012), p. xii

Vol. I, Ch. 10, as translated by R. B. Haldane
The World as Will and Representation (1819; 1844; 1859)
Context: Correct and accurate conclusions may be arrived at if we carefully observe the relation of the spheres of concepts, and only conclude that one sphere is contained in a third sphere, when we have clearly seen that this first sphere is contained in a second, which in its turn is contained in the third. On the other hand, the art of sophistry lies in casting only a superficial glance at the relations of the spheres of the concepts, and then manipulating these relations to suit our purposes, generally in the following way: — When the sphere of an observed concept lies partly within that of another concept, and partly within a third altogether different sphere, we treat it as if it lay entirely within the one or the other, as may suit our purpose.

"Transcript: Chinese Ambassador to the U.S. Qin Gang on Face the Nation" in CBS https://www.cbsnews.com/news/qin-gang-chinese-ambassador-face-the-nation-03-20-2022/ (20 March 2022)

The Dinosaur Heresies: A Revolutionary View of Dinosaurs (1986), Longman Scientific & Technical, p. 81
The Dinosaur Heresies (1986)

Source: Keeping Faith