"Curiosity...

""

...such an interesting thing. To think what we owe to it throughout history. Curiosity. I don't know who invented curiosity. It is said to be usually associated with the cat. Curiosity killed the cat. But I should say really that the Greeks were the inventors of curiosity. They wanted to know. Before them, as far as I can see, nobody wanted to know much. They just wanted to know what the rules of the country they were living in were, and how they could avoid having their heads cut off or being impaled on spikes or something disagreeable happening to them. But they either obeyed or disobeyed. They didn't want to know why. But since then a lot of people have wanted to know why and all sorts of things have happened because of that. Boats, trains, flying machines and atom bombs  and penicillin and cures for various illnesses. A little boy watches his mother's kettle raising its lid because of the steam. And the next thing we know is we have railway trains, leading on in due course to railway strikes and all that. And  so on and so on." ~ Hercule Poirot in Agatha Christie's Elephants Can Remember