At the end of this experience my opinion is richer of information and my initial idea is surer.
I still believe that walls mustn't exist, they're barriers against integration, against exchanges and finally against human progress. Builing walls for humans means destroy evolution with their own hands and in this way evolution becomes involution.
Knowing history that seemed to me so far and knowing that today people continue to make the same mistakes makes me sad and I want that one day we will hear a loud voice which say stop to this regression, a voice that say stop to every type of barrier in and out of our own countries because I learnt that we can raise barriers also in our "territory" because of the large turnout of immigrants. They're people like us and we have to welcome them with open arms and help them without prejudices, selfishness and without expecting anything in return. They deserve the possibility to live another life, a better life an we have the moral duty to offer it as much as we can.
So, we have to demolish this wall around our mind, put an end to this attempts to overthrow values such as unity, solidariety and convivence. What is this Earth if not a single one in which a nonpareil population lives, a population full of different cultures and then full of starting point to involve? How can we think to wreck this?