Answer:
The author is trying to say that it's worthless to be classified as a citizen if you cannot vote, just as it is worthless to have a boat if you have no oars.
Answer:
Eriki and two of his colleagues at Berlin's elite Academy of Music decide to make an experience using the musicians and their talents. The class of violinists and pianists were divided in 3 groups, using the skills levels as criteria. Every single student was asked about how many hours he /she had spent /training since the first time they touch the instrument
Ericsson discovered that the most successful players spent minimum 10,000 hours practicing.
Demolish could be a word to fit in there