If the quality and quantity of continuous effort toward goals matters as much as I think it does, we may actually get more productive, not less, as we get older - even if we can't pull all-nighters like we used to.
If you are a young person who is wanting to develop a passion, you cannot expect anyone else to tell you what that passion would be.
The words that we use I think are symbolic of the values that we hold.
Really, what matters in the long run is sticking with things and working daily to get better at them.
There are no shortcuts to true excellence.
Boredom is a very self-conscious emotion by definition. Interest is not. So you can actually be completely absorbed in something and, at certain points in your development, not even realize that you're into it.