Water...What a big problem...do you know that there was a philosopher who say that WATER was the origin of all the world??bah... and now we use it badly and make it dirty...bah... we're really stupid!!!
Leonardo...What do you want to know about philosophy?? It' s a beautiful and hard subjet, do you like it??
an other thing I would like to say: At school we're making a list of question about you and your country...If you want, do the same, we'll be happy to answer you, ok??