给出两段文字，使用自然语言处理技术将它们合并为一段，并使其流畅不卡顿。


Text 1: Who was Einstein?
Text 2: Albert Einstein was a German-born theoretical physicist who developed the theory of relativity.
Albert Einstein was a German-born theoretical physicist who developed the theory of relativity, so when we ask "who was Einstein?" we can answer by saying that he was a pioneering scientist who made significant contributions to the field of physics.