From the Correct Beliefs, Righteous Deeds, Noble Morals, and High Manners

The Shaykh :"From the Correct Beliefs, Righteous Deeds, Noble Morals, and High Manners" Belief is what a person judges in his heart. It may be correct, or it may be incorrect. That is, he judges something about something else in his heart; if it agrees with the truth, it is valid, and if it contradicts it, it is invalid. The difference between belief and knowledge is that knowledge is perceiving a thing as it is; you perceive it as it is. Belief, however, is fixing your heart upon it, affirming it, or denying it. Belief is broader in the sense that a person may hit the actual truth, or he may not. As for knowledge, it certainly hits the truth. It is narrower in the sense that knowledge is perception, while belief is judgment. For this reason, some of them defined it as the decisive judgment of the mind. The decisive judgment of the mind is belief. If it matches, it is truth; if it contradicts, yes, if it matches reality or matches the Shari'ah in Shari'ah matters, it is truth; if not, it is false. So the difference between belief and knowledge is that knowledge is perception without judgment, while belief is judgment. Secondly, knowledge matches reality, while belief may contradict reality. For this reason, you may believe that so-and-so...