good for bernard. when federer was asked as a teen in a group of fellow teens what he wanted to achieve, he said "get to number 1", whereas all the others just limited themselves to talking about getting to the top 100 and other less achieving goals.
in order to be the best, you have to believe you're the best.
Of course you need to believe in yourself. But Tomic is not a teen anymore, he should know better than to say things like that in public. That´s the difference, it would be smart to keep a little lower profile in public, even if you have an enormous self-confidence.