Eratosthenes was the director of the great library of Alexandria, the Centre of science and learning in the ancient world. Aristotle had argued that humanity was divided into Greeks and everybody else, whom he called barbarians and that the Greeks should keep themselves racially pure. He thought it was fitting for the Greeks to enslave other peoples. But Erathosthenes criticized Aristotle for his blind chauvinism, he believed there was good and bad in every nation.
We live within the environment. So that directly relates with our survival, our life. So through that way, more concern of well being of humanity, then naturally concerned about environment.
Whether we love humanity or not, we must realize that we are part of it. My future depends entirely on the future of humanity, and so I am compelled to take care of humanity. That is why being compassionate is actually in my own best interest. And a symptom of my own peace of mind is that I can share comfort with others around me.
There's something about when humanity goes from hoping they get lucky in finding something fermented to doing it on purpose. They don't understand what they've done until the late 1800s, but they know if they combine things in a certain way, they'll get something magic.
Stay close to those who are not afraid to be vulnerable, because they have confidence in themselves and know that, at some point in our lives, we all stumble; they do not interpret this as a sign of weakness, but of humanity.
Avoid those who talk a great deal before acting, those who never take a step without being quite sure that it will bring them respect.