The scraps of paper reveal how the Superiors graded their new recruits.
Explanation:
Thar is the right answer to the question. By unsealing their fate, it was trying to let the audience know that, they got to know how things are done <em>regarding to new recruits through the information which they got from the scraps of paper. This is unlike when they were in the dark about the whole process.</em>
Another way to say <span>"Have the courage to use your own understanding," is Saper aude which loosely translates to "Dare to be wise" or "Dare to think for yourself"