If you try to enumerate all of the things that you know with absolute, 100% certainty, you will find that the list is very small.
You know that “something” exists.
If you have mental experiences, then you know that “you” exist (though coming up with a reasonable definition for what “you” means can be remarkably tricky).
If your mental experiences are varied, then you know that whatever exists creates varied mental experiences.
With some cleverness, you may be able to add to this list ...
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system
The Interplay Between Your Reason and Emotions
It can sometimes be useful to think of yourself as consisting of multiple systems. You have an emotional system that constantly processes your sensory input and thoughts, and produces emotions like fear, anger, happiness and contempt based on this input. You also have a reasoning system, which is what you use when you are reasoning, planning, analyzing and consciously predicting. But the operations of these two systems are not independent. In fact, they each have the power to alter the operation...
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