As Professor Wolfson points out, the essence of relativity can be summed up in a single sentence: The laws of physics are the same for all observers in uniform motion.

• 正如沃弗森教授所指出的，相对论的精髓可以浓缩成一句话：在所有相互作匀速直线运动的惯性系中，物理定律具有相同的形式。