661. As we know, the Earth's axis represents a certain degree of tilt in relation to its orbit around the sun. If this tilt did not exist and the Earth's axis, however, was completely perpendicular in relation to that orbit, the Earth would be in complete harmony with the sun. And the aforementioned disability in the Earth's organism would then have been an impossibility. There would admittedly still have existed a slight indication of the seasons, and there would have been a little bit too much heat in the equatorial zone and a somewhat intense coldness in the polar regions, but throughout the temperate zone, namely the zone that is really intended to be the place for the Earth's intellectual or most advanced micro-organisms, there would be an everlasting summer or a climate that on the whole represents something similar to the best September weather that exists at present. Day and night would each be twelve hours long, all year round, over the whole Earth. And human beings' mental cycle would therefore correspond completely with both the 24-hour cycle and the year cycle. It would not be necessary for human beings to extend their unfolding of the afternoon into the domain of the night. There would be plenty of sunshine for them to give expression to their energy, just as all kinds of housing and heating problems would be very much reduced. Evolution would feel much easier, since the killing principle would certainly also be reduced, finding expression only in the struggle that inevitably has to exist between beings on account of their still animal sexuality and the consequent selfishness and urge to mate.