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.
To have security against atomic bombs and against the other biological weapons, we have to prevent war, for if we cannot prevent war every nation will use every means that is at their disposal; and in spite of all promises they make, they will do it. At the same time, so long as war is not prevented, all the governments of the nations have to prepare for war, and if you have to prepare for war, then you are in a state where you cannot abolish war.
To speak for others is to first silence those in whose name we speak
With disdain I will throw my gauntlet full in the fact of the world and see the collapse of this pygmy giant. Then will I wander god-like and victorious through the ruins of the world. And giving my words an active force, I will feel equal to the Creator.
To the man-in-the-street, who, I'm sorry to say, is a keen observer of life. The word Intellectual suggests straight away. A man who's untrue to his wife.
The creature that wins against its environment destroys itself.
Once you become aware that the main business that you are here for is to know God, most of life's problems fall into place of their own accord.
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