Do Not Go Gentle into that Good night is a poem from Welsh poet Dylan Thomas. It is his most famous poem, telling the listener to fight against death.
You recently watched Independance Day, where before the last battle, the President's speech declares "We will not go quietly into the night. We shall not die without a fight!" I'm sure you can hear the resemblence, which is no coincidence.
Everyone quotes or paraphrases this poem..