将给定的一段文本进行翻译，输出翻译后的文本。
1. 德国著名的哲学家尼采曾说过，“当你与妻子生活在一起时，你必须小心，因为这是最难的事情之一。”
The famous German philosopher Nietzsche once said, "When you live with your wife, you must be careful because it is one of the most difficult things." 

（Note: This is a direct translation. The cultural implications and nuances of this quote may differ depending on the context and interpretation.)