We have literally no time to sit down and ask ourselves whether so-and-so is our neighbour or not. We must get into action and obey—we must behave like a neighbour to him. But perhaps this shocks you. Perhaps you still think you ought to think out beforehand and know what you ought to do. To that there is only one answer. You can only know and think about it by actually doing it. You can only learn what obedience is by obeying.
