"It is well to remember that the hatred which many entertain against the doctrine of development as applied to solar systems and stellar galaxies is not in reality a sign, as they imagine, of humility, but is an effort to avoid the recognition of the nothingness of man in the presence of the infinities of space and time and vitality presented within the universe of God."[518] Humboldt says-- "That arrogant spirit of incredulity, which rejects facts without attempting to investigate them, is in some cases almost more injurious than an unquestioning credulity. Both are alike detrimental to the force of investigations."[519] With reference to the precession of the equinoxes and the changes it produces in the position of the Pole Star, it is stated in a recent book on science that the entrance passage of the Great Pyramid of Ghizeh is inclined at an angle of 30° to the horizon, and therefore points to the celestial pole. But this is quite incorrect. The Great Pyramid, it is true, is situated close to the latitude of 30°. But the entrance passage does not point exactly to the pole. The inclination was measured by Col. Vyse, and found to be 26° 45'. For six out of the nine pyramids of Ghizeh, Col. Vyse found an _average_ inclination of 26° 47', these inclinations ranging from 25° 55' (2nd, or pyramid of Mycerinus) to 28° 0' (9th pyramid).[520] Sir John Herschel gives 3970 B.C. as the probable date of the erection of the Great Pyramid.[520] At that time the distance of α Draconis (the Pole Star of that day) from the pole was 3° 44' 25", so that when on the meridian _below_ the pole (its lower culmination as it is termed) its altitude was 30° - 3° 44' 25" = 26° 15' 35", which agrees fairly well with the inclination of the entrance passage. Letronne found a date of 3430 B.C.; but the earlier date agrees better with the evidence derived from Egyptology. Emerson says-- "I am brother to him who squared the pyramids By the same stars I watch." From February 6 to 15, 1908, all the bright planets were visible together at the same time. Mercury was visible above the western horizon after sunset, Venus very brilliant with Saturn a little above it, Mars higher still, all ranged along the ecliptic, and lastly Jupiter rising in the east.[521] This simultaneous visibility of all the bright planets is rather a rare occurrence.