Most of us fear (actually fear) people who differ from ourselves, either up or down the scale.

Your Edison pries fearlessly into the intimate secrets of matter; your Marconi employs the mysterious properties of the "jellied ether," but let a man seek to experiment with the laws of that singular electricity which connects you and me (though you be a millionaire and I a ditch-digger), and we think him a wild visionary, an academic person.

I think sometimes that the science of humanity to-day is in about the state of darkness that the natural sciences were when Linneus and Cuvier and Lamarck began groping for the great laws of natural unity.

Most of the human race is still groaning under the belief that each of us is a special and unrelated creation, just as men for ages saw no relationships between the fowls of the air, the beasts of the field, and the fish of the sea.

But, thank God, we are beginning to learn that unity is as much a law of life as selfish struggle, and love a more vital force than avarice or lust of power or place.