In Germany, we don't generally like boasting or exaggerations. Better to tell it like it is, even if it hurts. Some German managers I've worked with thought it was praise if they did not point out suggestions for improvement.
In the States, I'm confronted with a new "the biggest the best the fastest the you-name-it superlative" every day. Marketing and PR have become individual activities, and everyone's an expert or guru.
I'm going to try this year to find a happy medium, like the quote implies, and invite you to do the same. No reason to hide your light under a bushel, and hey - you got three PhD's? Well, it ain't braggin' if it's true.
Happy New Year!