The Problem of Increasing Human Energy, with Special References to the Harnessing of the Sun’s Energy

When we speak of man we have a conception of humanity as a whole and before applying scientific methods to the investigation of his movement we must accept this as a physical fact. But can any one doubt to-day that all the millions of individuals and all innumerable types and characters constitute an entirety a unit? Though free to think and act we are held together like the stars in the firmament; with ties inseparable. These ties we cannot see but we can feel them. I cut myself in the finger and it pains me: this finger is a part of me. I see a friend hurt and it hurts me too: my friend and I are one. And now I see stricken down an enemy a lump of matter which of all the lumps of matter in the universe I care least for and still it grieves me. Does this not prove that each of us is only a part of a whole?