I remember there was an old physics teacher K N Thomas in my 9th class. He taught us using live examples, like for less resistance in thicker wire is shown by asking us to visualise a wide road, which will have very less obstruction(resistance) in flow of traffic (electrons), and same logic for thin wires having high resistance. He told us many more examples like this.
He told us that we should observe things just like a person who would come from Mars to earth for the first time, then we would fundamentally understand whatever science there is.
A few years later, one more teacher, Vandana Adhlakha (she taught us english) told the same thing. Some more years another English professor in my college stressed in the same thing. That to be able to see things clearly, one should assume that he does not know anything about it, as if he has come from.Mars.
The curiosity is what keeps many people alive. Curiosity for something greater and bigger! Because no one can claim that he is the greatest thing the world can boast of. There is always something unknown to even the best of knowledgeable people.
Learning becomes a perennial process for people who are curious. This curiosity keeps their he arts and mind fresh and young