If you don’t have love in your life, it doesn’t mean that you should not live anymore. Survival is not the characteristic of love. Also lack of love will not bring destruction to your life. The most important thing which matters for survival is justice.
If you both are in love, understanding each other and communicating well and you think that you need nothing more in life to survive, then you are wrong. Remember one thing, two hungry beggars can also feel each other’s hunger but they can’t satisfy hunger. It is very important for them to do justice with each other’s hunger by sharing food with each other if they get some in future. This is how justice plays its part in survival.
Just is the most important aspect of life. If justice is the centre of attention instead of love, the world would be a better place to live in, which is more important for our survival. There would not be any need of justice if friendship is there between peoples. But friendship is not that widely spread and it is still not the part of everyone’s life.
You should not do justice only with your loved ones. Justice should be equally served to everyone. Like if you go to a restaurant and eat a meal there, then you should pay him for the food, unless the owner offers you the free service. So it is very clear that justice is very valuable for the world.