The extreme weakness of quantum gravitational effects now poses some philosophical problems; maybe nature is trying to tell us something new here: maybe we should not try to quantize gravity.
Interpretation
The quote reflects on the challenges and philosophical implications of understanding gravity through quantum mechanics.
Richard P. Feynman's quote highlights the profound uncertainties and philosophical questions that arise from the weak observational effects of quantum gravity. He suggests that perhaps nature itself is indicating a need to reconsider our approaches and assumptions about quantizing gravity, urging us to think critically about the fundamental principles of physics.
In practice
During a physics lecture, to introduce the complexities of quantum mechanics.
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.
Too much openness and you accept every notion, idea, and hypothesis-which is tantamount to knowing nothing. Too much skepticism-especially rejection of new ideas before they are adequately tested-and you're not only unpleasantly grumpy, but also closed to the advance of science. A judicious mix is what we need.
If something can corrupt you, you're corrupted already.
The question of souls is oldβwe demand our bodies, now. We are tired of promises, god is deaf, and his church is our worst enemy.
My experience is listen, see, feel - and then think about what you change.
Men decide far more problems by hate, love, lust, rage, sorrow, joy, hope, fear, illusion or some other inward emotion, than by reality, authority, any legal standard, judicial precedent, or statute.
A man who worships in Spirit and Truth no longer honors the Creator because of His works, but praises Him because of Himself.
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