Classicly

The scientist, with his head comfortably and excusably full of knowable things, takes nothing seriously and with his hat off, except human knowledge. The creations of the human spirit are, from his point of view, incalculable vagaries, irresponsible phenomena, to be regarded2 only as play, and, for the mind’s good, only as recreation,—to be used to while away the tedium of a railway journey, or to amuse a period of rest or convalescence; mere byplay, mere make-believe.