Dimensionless constants in the laws of nature, which from the purely logical point of view can just as well have different values, should not exist.
Notes from Wikiquote
As quoted in Begegnungen mit Einstein, von Laue, und Planck (1988) by Ilse Rosenthal-Schneider, p. 31, English edition Reality and Scientific Truth : Discussions with Einstein, von Laue, and Planck (1980) by Ilse Rosenthal-Schneider