Even the best speakers and writers are in the habit of placing a modifying word or words between the to and the remaining part of the infinitive. It is possible that such will come to be looked upon in time as the proper form but at present the splitting of the infinitive is decidedly wrong. "He was scarcely able to even talk""She commenced to rapidly walk around the room." "To have really loved is better than not to have at all loved." In these constructions it is much better not to split the infinitive. In every-day speech the best speakers sin against this observance.
In New York City there is a certain magistrate, a member of "the 400," who prides himself on his diction in language. He tells this story: A prisoner, a faded, battered specimen of mankind, on whose haggard face, deeply lined with the marks of dissipation, there still lingered faint reminders of better days long past, stood dejected before the judge. "Where are you from?" asked the magistrate. "From Boston," answered the accused. "Indeed," said the judge, "indeed, yours is a sad case, and yet you don't seem to thoroughly realise how low you have sunk." The man stared as if struck. "Your honor does me an injustice," he said bitterly. "The disgrace of arrest for drunkenness, the mortification of being thrust into a noisome dungeon, the publicity and humiliation of trial in a crowded and dingy courtroom I can bear, but to be sentenced by a Police Magistrate who splits his infinitives—that is indeed the last blow."
ONE
The indefinite adjective pronoun one when put in place of a personal substantive is liable to raise confusion. When a sentence or expression is begun with the impersonal one the word must be used throughout in all references to the subject. Thus, "One must mind one's own business if one wishes to succeed" may seem prolix and awkward, nevertheless it is the proper form. You must not say—"One must mind his business if he wishes to succeed," for the subject is impersonal and therefore cannot exclusively take the masculine pronoun. With any one it is different. You may say—"If any one sins he should acknowledge it? let him not try to hide it by another sin."