Investment Immigration insight into Greek culture: The rise of numerous Hellenistic cities at the crossroads of Asia, Africa, and Europe, combined with the rapid establishment of libraries, undoubtedly provided a catalyst for the flourishing of science. As we know, Pythagoras discovered the "Universal Theorem" long ago; Euclid summarized the experiences of his predecessors to establish systematic geometry, and his "Elements" has circulated for millennia, remaining a popular textbook in European universities to this day. Archimedes of Syracuse was a deep thinker; from the water overflowing his bathtub, he realized the existence of buoyancy and established hydrostatics by deriving mathematical formulas for the equilibrium of floating bodies. Drawing strength and confidence from science, he asserted that if given a fulcrum, he could move the Earth—an expression of his dauntless spirit and perseverance in challenging nature. This is the invaluable quality of Greek scientists. When that Roman soldier killed Archimedes, who was pleading for time to finish his calculation, he inadvertently condemned himself to eternal infamy. Greek astronomy benefited from Babylonian knowledge; Aristarchus of Samos questioned the "geocentric theory" long before Copernicus. Hipparchus developed the primary astronomical instruments of the time, such as the dioptra and quadrant, invented a method of using coordinates to determine positions on Earth, and calculated the lengths of the solar year, lunar year, and sidereal year with remarkable accuracy. The romantic Greeks also imbued the mysterious celestial dome and the constellations they defined with mythology. Whenever night falls and we sit in a tranquil farmhouse courtyard gazing up at the sky, musing amidst the flickering of fireflies and starlight, it is as if we see Apollo wearing winged sandals racing toward a harp-playing nymph, Pegasus leaping over the head of the Lion, and the valiant Orion fiercely brandishing his club at Sirius... In addition to their prominent achievements in astronomy, physics, and mathematics, the Greeks also made exploratory advancements in botany, zoology, medicine, and other fields, laying a solid foundation for the development of modern disciplines.