'They don't always agree with our governments, their teachers or their parents, but it is the conviction of their ideas, and their determination to share them with the world that, I believe, is one of the greatest sources of hope for our planet.' 'The colonisation of space, understanding the very building blocks of matter and the universe, utilising our understanding of the human genome to conquer disease -- these are the tasks waiting for a fellowship of minds to realise new triumphs in our collective destiny.'
Full transcript of President Obama's speech at the Siri Fort Auditorium in New Delhi.