It's an unusual question and it could be lost in translation.
My interpretation of the question is what attributes do you feel contribute to a being a successful pilot.
Self awareness - ability to see one's own failings and to proactively find solutions.
Inquisitiveness - a desire to learn more than just the bare minimum.
Being social - not necessarily a party animal but someone who can be pleasant to work with.
Self disciplined - ability to say no to that alcoholic drink or drug. Be able to prioritise study when the weather is nice/parties/beach beckons.
Being able to focus on what's right, rather than who's right (key CRM point)
Being self assertive - strength of character to speak up when you have to. Also, to phrase questions that don't undermine your colleague. It seems contradictory. Speaking up when your colleague is about to do something illegal (descend below minima when not visual etc) versus asking a question because you haven't seen that technique or method before.
Safety. Enough said.
I could be completely wrong about the question so please take my answer as advice/interpretation rather than a definitive answer.