Let me tell you a story. A good friend of   lives with six hundred animals on an island. Ever since he left school, he has traveled all over the world   for animals for his own zoo. He writes   about his travels, and about his wonderful animals. The money from his books helps him to    for all the animal food. My friend told me that there is not enough water on the island,    there is a lot all around it. When he was looking for water last week, he    oil. He needs   for his travels and for his zoo, and a little oil would buy enough water for a long time. But he knows that    he tells anybody else about it, it will be the end of his zoo and his life’s work. So I think he    tell anybody except you and me about what he found — because oil and water can’t be put together. Oil may bring greater trouble    his animals than not having enough water. Do you think so?