正如人会患上心脏的疾病，人也会患上理智的疾病。然而在伊斯兰思想中，心与理智紧密相连、不可分割，二者彼此直接影响。

Just as one can suffer from diseases of the heart, so too can one suffer from diseases of the intellect. But in Islamic thought the heart and the intellect are intimately linked and inseparable such that they have a direct impact on each other.

傲慢，例如，通常被理解为一种心灵的疾病，但傲慢也会影响一个人的理智，即他理解和把握真理的能力。傲慢甚至会影响眼睛，以至于一个人对近在眼前的真理视而不见。这是我们在身边的人身上每天都能观察到的事情：我们会疑惑，为何有些人看不见那样显而易见的东西。嫉妒、恶意的仇恨和贪婪等疾病也是如此。这些疾病如此严重，不仅毁坏灵魂，还会感染整个身体，甚至模糊一个人清晰思考的能力。当你分析一些穆斯林改革者的著作时，可以在他们提出的论证和得出的结论中看到这些疾病的明显迹象。愿安拉使我们免于这样的境况。

Arrogance, for example, is typically understood as a disease of the heart, but arrogance also affects one’s intellect, i.e., one’s ability to understand and grasp truth. Arrogance can even affect the eyes such that one is blinded from truths that are right before one’s eyes. And this is an everyday thing that we can observe with people around us, where we wonder why some cannot see something so obvious. Same goes for maladies such as jealousy, malicious hate, and greed. Such diseases are so severe that they not only lay waste to the soul but also infect the entire body, up to the point of clouding one’s ability to think clearly. When you analyze the work of some Muslim reformers, you can see the telltale signs of these diseases in the arguments they make and the conclusions they draw. May Allah spare us from such a condition.

净化心灵所染的疾病，能使心灵更易接受引导与光明。但理智以及一个人的思考能力同样可能染上疾病。通过处理这些理智上的疾病并净化心智，理智便能更易接受引导与光明。

Purifying the heart of its diseases allows the heart to be more receptive to guidance and light. But the mind and one’s ability to think can also be diseased. By addressing these intellectual diseases and purifying the mind of them, the intellect is more receptive to guidance and light.