there are some evil people in the world , who take lives , take advantage of others and have no value for any human life apart from their own , but to take your own life , is really the supreme sacrifice and a strange dichotomy as on the one hand it can be seen as a cowardly thing to do , to give up , to give in , but on the other you are voluntarily over-riding your innate evolutionary instincts to survive at all costs , which has shaped the world and the universe for billions of years .