How strange that nature does not knock, and yet does not intrude!
— Emily Dickinson

The society of dead authors has this advantage over that of the living: they never flatter us to our faces, nor slander us behind our backs, nor intrude upon our privacy, nor quit their shelves until we take them down.
Charles Caleb Colton intrude quote

Even if I was well - I must make myself as good a Philosopher as possible. Now I have had opportunities of passing nights anxious and awake I have found other thoughts intrude upon me. If I should die, said I to myself, I have left no immortal work behind me - nothing to make my friends proud of my memory - but I have lov'd the principle of beauty in all things, and if I had had time I would have made myself remember'd.
— John Keats

The privacy and dignity of our citizens are being whittled away by sometimes imperceptible steps. Taken individually, each step may be of little consequence. But when viewed as a whole, there begins to emerge a society quite unlike any we have seen -- a society in which government may intrude into the secret regions of a person's life.
— William O. Douglas

Having been blacklisted from working in television during the McCarthy era, I know the harm of government using private corporations to intrude into the lives of innocent Americans. When government uses the telephone companies to create massive databases of all our phone calls it has gone too far.
— Studs Terkel