To learn anything other than the stuff you find in books, you need to be able to experiment, to make mistakes, to accept feedback, and to try again. It doesn't matter whether you are learning to ride a bike or starting a new career, the cycle of experiment, feedback, and new experiment is always there.
Theory said one thing and the experiment said something different, so that was the stimulus that started me going, that there was something there to be explained, which wasn't understood and to try to see why that experiment gave the answer it did, so it was a big opportunity for a young student starting to have actually an experiment which contradicted the theory, so that's was my chance to understand that.
The principle of science, the definition, almost, is the following: The test of all knowledge is experiment. Experiment is the sole judge of scientific "truth." But what is the source of knowledge? Where do the laws that are to be tested come from? Experiment, itself, helps to produce these laws, in the sense that it gives us hints. But also needed is imagination to create from these hints the great generalizations--to guess at the wonderful, simple, but very strange patterns beneath them all, and then to experiment to check again whether we have made the right guess.
Richard P. Feynman
Indeed, while Nature is wonderfully inventive of new structures, her conservatism in holding on to old ones is still more remarkable. In the ascending line of development she tries an experiment once exceedingly thorough, and then the question is solved for all time. For she always takes time enough to try the experiment exhaustively. It took ages to find how to build a spinal column or brain, but when the experiment was finished she had reason to be, and was, satisfied.
John M. Tyler
In its essence the Gospel is a call to make the experiment of comradeship, the experiment of fellowship, the experiment of trusting the heart of things, throwing self-care to the winds, in the sure and certain faith that you will not be deserted, forsaken nor betrayed, and that your ultimate interests are perfectly secure in the hands of the Great Companion. This insight is the center, the kernel, the growing point of the Christian religion, which, when we have it, all else is secure, and when we have it not, all else is precarious.
L. P. Jacks
The TV scientist who mutters sadly, "The experiment is a failure; we have failed to achieve what we had hoped for," is suffering mainly from a bad script writer. An experiment is never a failure solely because it fails to achieve predicted results. An experiment is a failure only when it also fails adequately to test the hypothesis in question, when the data it produces don't prove anything one way or another.
Robert M. Pirsig
Unfortunately, all life on earth - the only life we know - represents, for all its current variety, the results of a single experiment , for every earthly species evolved from the common ancestry of a single origin. We desperately need a repetition of the experiment (several would be better, but let's not be greedy!) in order to make a judgement. Mars represents our first real hope for a second experiment - the sine qua non - for any proper answer for the question of questions.
Stephen Jay Gould
No one believes an hypothesis except its originator but everyone believes an experiment except the experimenter. Most people are ready to believe something based on experiment but the experimenter knows the many little things that could have gone wrong in the experiment. For this reason the discoverer of a new fact seldom feels quite so confident of it as others do. On the other hand other people are usually critical of an hypothesis, whereas the originator identifies himself with it and is liable to become devoted to it.
William Ian Beardmore Beveridge
I never have, above my signature, announced anything that I did not prove first. That is the reason why no statement of mine was ever contradicted, and I do not think it will be, because whenever I publish something I go through it first by experiment, then from experiment I calculate, and when I have the theory and practice meet I announce the results.
There wasn't a lot of R&B cats doing songs at 120 beats per minute before 'Closer,' which I take full credit and responsibility for. That's all good, but it was an experiment. You experiment with something, if it goes good, cool, but you never forget where you come from and R&B is where I come from.
You're going to die soon enough anyway; even if it's a hundred years from now, that's still the blink of a cosmic eye. In the meantime, live like a scientist - even a controversial one with only an ally or two in all the world - and treat life as a grand experiment, blood, sweat, tears and all. Bear in mind that there's no such thing as a failed experiment - only data.
He [Washington] has often declared to me that he considered our new constitution as an experiment on the practicability of republican government, and with what dose of liberty man could be trusted for his own good; that he was determined the experiment should have a fair trial, and would lose the last drop of his blood in support of it. And these declarations he repeated to me the oftener and the more pointedly.
There is one experiment which I always like to try, because it proves something whichever way it goes. A solution of iodine in water is shaken with bone-black, filtered and tested with starch paste. If the colorless solution does not turn the starch blue, the experiment shows how completely charcoal extracts iodine from aqueous solution. If the starch turns blue, the experiment shows that the solution, though apparently colorless, still contains iodine which can be detected by means of a sensitive starch test.
Wilder Dwight Bancroft
if you're doing an experiment, you should report everything that you think might make it invalid-not only what you think is right about it: other causes that could possibly explain your results; and things you thought of that you've eliminated by some other experiment, and how they worked-to make sure the other fellow can tell they have been eliminated.
Richard P. Feynman
It is better to travel with hope in one's heart than to arrive in safety. . . . We should celebrate today's failure because it is a clear sign that our voyage of discovery is not yet over. The day the experiment succeeds is the day the experiment ends. And I inevitably find that the sadness of ending outweighs the celebration of success.
Experimental science is a craft and an art, and part of the art is knowing when to end a fruitless experiment. There is a danger of becoming obsessed with a fruitless experiment even if it goes nowhere. It is always a good plan for a speculative experimenter to have two experiments going, or at least one going and one being built.
Martin Lewis Perl
They had imagined too often and too much and so they had exhausted all their possibilities. When they embraced each other's phantoms, each in his separate privacy has savoured the most refined of pleasures but, connoisseurs of unreality as they were, they could not bear the crude weight, the rank smell and the ripe taste of real flesh. It is always a dangerous experiment to act out a fantasy; they had undertaken the experiment rashly and had failed...
I thought my duty was to restore Haan, but Haan is not King Cosugi or the burned-down palace or the ruins of the great estates or the dead nobles and their descendants pining for glory-these are but parts of an experiment at a way of life for the people of Haan, her true essence. When the experiment has proven to be a failure, one must be willing to try new paths, new ways of doing things.
Anything from making a mistake on an experiment that would ruin some scientist on earth's experiment - career, potentially - to doing something wrong with the satellite that a country was depending on for its communications, to making some mistake that could actually cost you and the crew either a mission or your lives. So there is a lot of pressure that's put on every astronaut to just make sure that he or she understands exactly what to do, exactly when to do it, and is trained and prepared to carry it out.