This is a thing I recently thought about quite a lot:
The dark side gains power from strong and/or negative emotions. Now okay I do get that the Jedi can "surpress" these emotions to a certain degree but since they are emotions they are almost unexplainable to someone who has never felt said.
Also the dark side has always been a problem for Jedi. But yet there are still Jedi that study the how (not) and why (not) of the dark side and the sith. They know what they must do to not fall to the dark side.
How exactly are Jedi able to study the dangers of the dark side without being corrupted?