The banana: it's skin protects the fruit - and it reveals it's condition of freshness in an ideal way. This nourishing fruit is full of vitamins - a masterpiece of nature.
Dealing with men it is not that easy, because the outer impression only gives us a limited idea of what's going on inside. Sophisticated interview- and measurement-techniques are necessary in order to generate good insights about our hidden world of thoughts. We've been working on that for a long time and it is part of our philosophy never to stand still and to improve always a bit more. The good thing about it: concerning men, learning will never cease.