When I read your question, the first thing which flashed in my mind is The Movie Ninja Assassin. It might not be surprising why is that particular movie flashing. The subtitle of the movie says Fear not the weapon, but fear the hand that handles it. Weapon is in itself not dangerous, but the hand that handles is very dangerous.
I am not exactly sure about a poetry on Speed. The poem explains about the dangers of speed and finally it ends saying that speed is not dangerous. It is we who make speed very life-threatening.
Extremities of life is the philosophy of science. For instance if you take men the other extreme is women, dark and light, good and bad, love and hatred. Science is neutral. Science do not having anything for itself. It depends on the purpose it has been invented or discovered. Science can also give life and at the same time it can cause even n number of genocides.
Science is a neutral. It has nothing to do with anything.