  Two of Lanczos' seminal contributions in physics that are not generally known
about in the physics community are discussed and commented in relation to more
recent investigations: First, his integral formulation of the Schroedinger
equation that he published just before Schroedinger himself published his
differential equation formulation of quantum mechanics, and, second, his
solution to the problem of equations of motion of material particles in the
theory of general relativity.
