You must not leave your perambulator anywhere, and only in certain places can you take it with you.

I should say that in Germany you could go out with a perambulator and get into enough trouble in half an hour to last you for a month.

Any young Englishman anxious for a row with the police could not do better than come over to Germany and bring his perambulator with him.
In Germany you must not leave your front door unlocked after ten o'clock at night, and you must not play the piano in your own house after eleven.
In England I have never felt I wanted to play the piano myself, or to hear anyone else play it, after eleven o'clock at night; but that is a very different thing to being told that you must not play it.

Here, in Germany, I never feel that I really care for the piano until eleven o'clock, then I could sit and listen to the "Maiden's Prayer," or the Overture to "Zampa," with pleasure.

To the law-loving German, on the other hand, music after eleven o'clock at night ceases to be music; it becomes sin, and as such gives him no satisfaction.
The only individual throughout Germany who ever dreams of taking liberties with the law is the German student, and he only to a certain well-defined point.