Usage is the only test. I prefer a phrase that is easy and unaffected to a phrase that is grammatical.
W. Somerset MaughamTo acquire the habit of reading is to construct for yourself a refuge from almost all the miseries of life.
W. Somerset MaughamYet magic is no more than the art of employing consciously invisible means to produce visible effects. Will, love and imagination are magic powers that everyone possesses; and whoever knows how to develop them to their fullest extent is a magician. Magic has but one dogma, namely, that the seen is the measure of the unseen.
W. Somerset Maugham