UNIFIED FIELD THEORY 351In his attempts to generalize general relativity, Einstein had from the very
beginning two aims in mind. One of these, to join gravitation to electromagnetism
in such a way that the new field theory would yield particle-like singularity-free
solutions, was described in the preceding pages.
His second aim was to lay the foundations of quantum physics, to unify, one
might say, relativity and quantum theory.
Einstein's vision of the grand synthesis of physical laws will be described toward
the end of the next part of this book, devoted to the quantum theory. As that part
begins, we are back with the young Einstein in that radiant year 1905.References
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