I cannot but regard the ether, which can be the seat of an electromagnetic field with its energy and its vibrations, as endowed with a certain degree of substantiality, however different it may be from all ordinary matter.

Hendrik Lorentz

Einstein's work is to make physics more philosophical (in a good sense).

Hendrik Lorentz

The term relativity refers to time and space. According to Galileo and Newton, time and space were absolute entities, and the moving systems of the universe were dependent on this absolute time and space.

Hendrik Lorentz

Let there be in every material particle several material points charged with electricity, of which, however, only one be movable, and have the charge e and the mass μ.

Hendrik Lorentz

The whole Galileo-Newton system thus sank to the level of a first approximation, becoming progressively less exact as the velocities concerned approached that of light.

Hendrik Lorentz

The resulting formulas sufficed for all motions of a slow nature; it was found, however, that they would not conform to the rapid motions apparent in electrodynamics.

Hendrik Lorentz

It is comprehensible that a person could not have arrived at such a far-reaching change of view by continuing to follow the old beaten paths, but only by introducing some sort of new idea.

Hendrik Lorentz

Einstein had immense fame among physicists, and among all who are interested in the philosophy of science, because of his principle of relativity.

Hendrik Lorentz

On this conception was built the science of mechanics.

Hendrik Lorentz

Whether it is true or not that not more than twelve persons in all the world are able to understand Einstein's Theory, it is nevertheless a fact that there is a constant demand for information about this much-debated topic of relativity.

Hendrik Lorentz

Briefly, it discards absolute time and space and makes them in every instance relative to moving systems.

Hendrik Lorentz

In observable phenomena, which could be attributed to absolute motion of the observer.

Hendrik Lorentz