Man is horrifically ill-equipped.We have been ill treated by nature. The only living creature that has been treated this bad.
Other animals have fur to keep them warm, are either vegetarian or would eat their meat raw, other animals cooperate- they don't compete.
It is in our human nature to compete. But we tend to forget- we tend to forget the reason why we have evolved into societies; why we live in groups. We tend to forget the importance of a family; the building block of a society. Humans wouldn't have survived hadn't they cooperated in the first place: "You build the shelter, while I tend to the crops"
Capitalism and the corporate life have lead us to forget the essence of our humanity; the reason we originally made it through all those centuries: our togetherness; we were created to reinforce one another's existence.
We are our quintessence. THIS is a reminder: our brains are the only weapons we were given, and they work perfectly fine! They just need the guidance of our hearts, because that's what makes us human. A heart tells you when to stop, when you compete too much when, in fact, you should be cooperating! See! Even a heart and a mind cooperate. And that is how we survive.
Survival is not of the fittest, nor is it of the socially smart, it is of those who are in touch with their humanity.