Isolated facts and experiments have in themselves no value, however great their number may be. They only become valuable in a theoretical or practical point of view when they make us acquainted with the law of a series of uniformly recurring phenomena, or, it may be, only give a negative result showing an incompleteness in our knowledge of such a law, till then held to be perfect.
Interpretation
Facts and experiments gain value only when they reveal consistent patterns or highlight gaps in our understanding.
This quote by Hermann Von Helmholtz emphasizes the importance of synthesizing individual facts and experiments into a broader understanding of the underlying laws of nature. Merely accumulating data without context does not advance knowledge; rather, it is the connection of these facts into a coherent theory that gives them significance, whether by demonstrating consistent phenomena or revealing our ignorance of existing laws.
In practice
In a science class discussing the importance of applying theory to experiments.
The total quantity of all the forces capable of work in the whole universe remains eternal and unchanged throughout all their changes. All change in nature amounts to this, that force can change its form and locality, without its quantity being changed. The universe possesses, once for all, a store of force which is not altered by any change of phenomena, can neither be increased nor diminished, and which maintains any change which takes place on it.
Black is real sensation, even if it is produced by entire absence of light. The sensation of black is distinctly different from the lack of all sensations.
Whoever, in the pursuit of science, seeks after immediate practical utility, may generally rest assured that he will seek in vain.
I had a bet with Gordon Kane of Michigan University that the Higgs particle wouldn't be found.
If we didn't need eight hours of sleep and could survive on six, Mother Nature would have done away with 25 percent of our sleep time millions of years ago. Because when you think about it, sleep is an idiotic thing to do.
The mineral world is a much more supple and mobile world than could be imagined by the science of the ancients. Vaguely analogous to the metamorphoses of living creatures, there occurs in the most solid rocks, as we now know, perpetual transformation of a mineral species.
Evolution is a process of constant branching and expansion.
Cancer is not one disease but many diseases.
Just because things get a little dingy at the subatomic level doesn't mean all bets are off.
Subscribe for the occasional hand-picked quote. No noise.