The objects of our perception invariably include places and times in combination. Nobody has ever noticed a place except at a time, or a time except at a place. But I still respect the dogma that both space and time have independent significance. A point of space at a point of time, that is a system of values x, y, z, t, I will call a world-point.


The Principle of Relativity: A Collection of Original Memoirs on the, Special and General Theory of Relativity, Space and Time (p. 76)


The objects of our perception invariably include places and times in combination. Nobody has ever noticed a place except at a time, or a time except...

The objects of our perception invariably include places and times in combination. Nobody has ever noticed a place except at a time, or a time except...

The objects of our perception invariably include places and times in combination. Nobody has ever noticed a place except at a time, or a time except...

The objects of our perception invariably include places and times in combination. Nobody has ever noticed a place except at a time, or a time except...