Each piece, or part, of the whole of nature is always merely an approximation to the complete truth, or the complete truth so far as we know it. In fact, everything we know is only some kind of approximation because we know that we do not know all the laws as yet.
Interpretation
Knowledge is inherently limited and approximative, reflecting our incomplete understanding of the universe.
This quote by Richard P. Feynman emphasizes that our understanding of nature and reality is fundamentally an approximation. It suggests that while we strive to determine the complete truth about the world around us, we must acknowledge that our knowledge will always be limited by our current insights and the unknown laws of the universe. Feynman encourages humility in our pursuit of knowledge, recognizing that scientific progress is a continuous journey of approximation rather than absolute certainty.
In practice
In a lecture on the nature of scientific inquiry, this quote serves as a reminder that our current theories are always subject to revision.
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.
Belief is a moral act for which the believer is to be held responsible.
In analysing history do not be too profound, for often the causes are quite superficial.
Culture, the acquainting ourselves with the best that has been known and said in the world, and thus with the history of the human spirit.
At the age when other children, I imagine, experience their first 'feeling' for a person, or for art, or for religion, I was affectionate, good, and even pious: by that I mean that under the influence of my mother, I was devoted to the Child Jesus.
The logic of the world is prior to all truth and falsehood.
Envy creates the beginning of strife.
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