How did M.Hamel expect the people of Alsace to keep their identity intact?

M Hamel expounded upon the French language as the most beautiful language in the world. It was the clearest, most logical language and one ought to guard it amongst them and never forget it. He observed that when people were enslaved, they hold fast to their language as if it was the key to their prison, it inculcates in them a sense of pride. Then he opened the grammar and read them a lesson which was so lucid and clear in his teaching. He wanted to give them all that he knew so that it stayed with them in times of political enslavement.