The curiosity ...

“Thinking is more interesting than knowing, but less interesting than looking ”
- Johann Wolfgang von Goethe

The curiosity chooses the worth of the stuff, people and facts. Until the people are curious about something they hold interest for it, once they understand that, the thing becomes ordinary and they move ahead for something more interesting. That’s why the nature does not reveal itself fully.

So, always hold something that people do not know, to keep them concerned :p