…This feeling of wonderment is the source and inexhaustible fountain-head of his desire for knowledge. It drives the child irresistibly on to solve the mystery, and if in his attempt he encounters a causal relationship, he will not tire of repeating the same experiment ten times, a hundred times, in order to taste the thrill of discovery over and over again….The reason why the adult no longer wonders is not because he has solved the riddle of life, but because he has grown accustomed to the laws governing his world picture. But the problem of why these particular laws and no others hold remains for him just as amazing and inexplicable as for the child. He who does not comprehend this situation misconstrues its profound significance, and he who has reached the stage where he no longer wonders about anything, merely demonstrates that he has lost the art of reflective reasoning.
[Max Planck, Scientific Autobiography, NY, 1949, pp 91-93]
In this week’s parasha we find a fascinating passage concerning Moshe’s descent from Sinai. We are informed that Moshe decided to cover his face with a mask after realizing that his facial skin had become radiant causing people to withdraw and not dare approach him (Shemot 34: 29-35).