Kids love the nature. And the universe. The stories as well as the poems. Time passes. They grow up. We were them. They become us. In the chase of the green paper, the doodles on the last page of the notebooks... stop appearing.
But the characters of the History Books, and many people in your knowledge, did not abandon their interests.
Thus, I am typing this. Because most of the times, the long-lasting satisfaction comes from doing what you love, more often. Its scale or scope... stays a mystery. Yet, the lack of any expectations, doesn't stop you from doing, that which must be done.
After all, as they say it:
If you can walk,
Why not run?