There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.

An experiment disproving a prediction is discovery.

Young man, if I could remember the names of these particles, I would have been a botanist.

Whatever Nature has in store for mankind, unpleasant as it may be, men must accept, for ignorance is never better than knowledge.

Where is everybody? Humans could theoretically colonize the galaxy in a million years or so, and if they could, astronauts from older civilizations could do the same. So why haven't they come to Earth?

Never underestimate the joy people derive from hearing something they already know.

It is not good to try to stop knowledge from going forward. Ignorance is never better than knowledge.