In plain words
Now, in games. When the game is played, the one in charge of it lays down certain rules to be kept. Every one of the players must follow what the umpire says to the letter. At times they lose themselves in joy and play the game wholeheartedly. In your joy you do not see your own fault, but the umpire, who is watching, sees it and blows the whistle at once. All must stop immediately. The moment the whistle blows, each one must freeze where he stands and make no move of any kind. The one who plays on without caring for the whistle breaks discipline. So in the world today, because discipline is missing in play, in speech and in song, life is turning into a fearful life.
Discipline is very necessary in human life. Some people gain power for a few days. In trade, in farming, or in any other calling, a certain discipline is essential. You should not write as you please, thinking, 'I am an official, after all, I have a pen in my hand.' You should not speak as you please, thinking, 'The tongue has no bone, after all.' So these words and writings too must stay within proper limits. Whatever word a man is about to speak, he must first ask himself whether it is right or not, and only then speak. In writing and cutting, you should not write as you please. Who knows what danger this writing may bring in the future. So we must first think it over and only then use this writing. If you ask how we should guard our power, we must guard it through discipline alone. When discipline is right, we need no other protection. Our own discipline protects us. In walking, in sitting, in laughing, there must be a certain discipline. Some people walk along. Even a road forty feet wide is not enough for them to walk on. They walk this way and that, as they please. You must keep walking only on the footpath, without causing any hindrance to the traffic. If we walk as we please instead, thinking, 'The road is there, after all,' we not only break discipline but also do some harm to others.