But a still greater thing has happened. Not only the real forms, the transitory facts of life have changed, not only do we live in other cities, other houses, not only are we dressed in different clothes, but the infinite above us too, that which seemed unshakable, has changed from what it was for our fathers and forefathers. Where the actual changes, the relative changes also. The most elementary forms of our conception, space and time, have been displaced. Space has become other than it was, for we measure it with new velocities. Roads that took our forefathers days to traverse can now be covered in one short hour; one flying night transports us to warm and luxuriant lands that were once separated from us by the hardships of a long journey. The perilous forests of the tropics with Jheir strange constellations, to see which cost those of old a year of their lives, are of a sudden near to us and easy of access. We measure differently with these different velocities of life. Time is more and more the victor of space. The eye, too, has learned other distances, and in cold constellations is startled to perceive the forms of primeval landscapes petrified; and the human voice seems to have grown a thousand times stronger since it has learned to carry on a friendly conversation a hundred miles away. In this new relationship of forces we have a different perception of the spanning round of the earth, and the rhythm of life, beating more brightly and swiftly, is likewise becoming new for us. The distance from springtime to springtime is greater now and yet less, greater and yet less is the individual hour, greater and less our whole life. And therefore is it with new feelings that we must comprehend this new age. For we all feel that we must not measure the new with the old measures our forefathers used, that we must not live through the new with feelings outworn, that we must discover a new sense of distance, a new sense of time, a new sense of space, that we must find a new music for this nervous, feverish rhythm around us. This new-born human conditionality calls for a new morality; this new union of equals a new beauty; this new topsy-turvydom a new system of ethics. And this new confrontation with another and still newer world, with another Unknown, demands a new religion, a new God. A new sense of the universe is, with a muffled rumour, welling up in the hearts of all of us.