Albert Einstein Quote

The general laws of nature are to be expressed by equations which hold good for all the systems of co-ordinates, that is, are co-variant with respect to any substitutions whatever (generally co-variant).


Proceedings of the American Catholic Philosophical Association, Volume 11, 1935


The general laws of nature are to be expressed by equations which hold good for all the systems of co-ordinates, that is, are co-variant with respect ...

The general laws of nature are to be expressed by equations which hold good for all the systems of co-ordinates, that is, are co-variant with respect ...

The general laws of nature are to be expressed by equations which hold good for all the systems of co-ordinates, that is, are co-variant with respect ...

The general laws of nature are to be expressed by equations which hold good for all the systems of co-ordinates, that is, are co-variant with respect ...