Remember when Count Dooku said, you must join me Obi Wan, and together, we will destroy the Sith! 

Sith lie all the time, in order to make you join them. 

Just like when Palpatin said I’ll help you save padme. 

Using your anger and hate is not dark sided. It does not make you on the dark side at all. 

Doing evil things does not make you more powerful. 

Anakin defeated count Dooku when he was a Jedi, and was evenly matched with Obi Wan when he was a Sith. 

Again, using anger and hate to become more powerful is not dark sided. 

It is all what being a true Jedi Grandmaster is all about. 

If a Padawan was to try to do the same, they would be out of control, and then they would do evil, and then they would fall easily to the dark side, just like what happened with Anakin. 

That is why fear, anger, and hate were forbidden. 

Unless you are a Jedi master. 

They are not the dark side. 

I see you use both interchangeably all the time. Tap into the dark side by using your anger and hate to become more powerful. 

If you are a Jedi master, you can do so without falling to the dark side. You will only become more powerful, but under control. 

If you are lesser than a master, you will mess up, and kill master Windu by mistake, fail miserably, and end up trapped in the dark side for the rest of your life. 

The Jedi teach the discipline part first as the foundation, for you will always mess up the true power part, if you’re not strong enough in the force, to control such power, once you have it.