It is always good to know which ideas cannot be checked directly, but it is not necessary to remove them all. It is not true that we can pursue science completely by using only those concepts which are directly subject to experiment.
Interpretation
Scientific inquiry can extend beyond directly testable ideas.
This quote by Richard P. Feynman emphasizes the importance of considering a broader range of ideas in scientific exploration. While empirically testable concepts drive much of scientific progress, it is also essential to acknowledge and explore ideas that may not be immediately verifiable, as they can lead to significant advancements and insights in understanding the universe.
In practice
During a scientific conference, one could use this quote to encourage open-mindedness in research.
The philosophical question before us is, when we make an observation of our track in the past, does the result of our observation become real in the same sense that the final state would be defined if an outside observer were to make the observation?
We seem gradually to be groping toward an understanding of the world of subatomic particles, but we really do not know how far we have yet to go in this task.
The first principle is that you must not fool yourself and you are the easiest person to fool.
It has not yet become obvious to me that there's no real problem. I cannot define the real problem; therefore, I suspect there's no real problem, but I'm not sure there's no real problem.
For far more marvelous is the truth than any artists of the past imagined it. Why do the poets of the present not speak of it? What men are poets who can speak of Jupiter if he were a man, but if he is an immense spinning sphere of methane and ammonia must be silent?
Science is a way to teach how something gets to be known, what is not known, to what extent things are known (for nothing is known absolutely), how to handle doubt and uncertainty, what the rules of evidence are, how to think about things so that judgments can be made, how to distinguish truth from fraud, and from show.
In order to figure out how to make atoms compute, you have to learn how to speak their language and to understand how they process information under normal circumstances.
Our task now is to resynthesize biology; put the organism back into its environment; connect it again to its evolutionary past; and let us feel that complex flow that is organism, evolution, and environment united. The time has come for biology to enter the nonlinear world.
Those who have learned to walk on the threshold of the unknown worlds, by means of what are commonly termed par excellence the exact sciences, may then, with the fair white wings of imagination, hope to soar further into the unexplored amidst which we live.
Well, biology today as I see it has an amiable look - quite different from the 19th-century view that the whole arrangement of nature is hostile, 'red in tooth and claw.' That came about because people misread Darwin's 'survival of the fittest.'
I am, and ever will be, a white socks, pocket protector, nerdy engineer.
The main difficulty is finding an idea that really excites me. We live in an age when miracles are no longer miracles, and science and the future are losing their sense of mystery. For science fiction, or at least the type of science fiction I write, this development is almost fatal, but I'm still giving it all I've got.
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