We are living now-a-days in the age of science. The intelligent human beings want to know: – Where did they come from? – Where did the universe come from? – Will the universe come to an end? – Is the universe static or dynamic, if dynamic, is it expanding or contracting? – What is time? – When was it started? – Will it come to an end? – What are black holes? – What are the forces of nature? – What is the smalliest piece of matter? – What is the status of man in the universe? – Are there ultimate limits for human beings to know about something?