It appears that some of my friends believe in ghosts, negative/positive energy and spirits.
I am not the kind of person that argue about these kind of things. It is no use. There is always a way of winning a discussion when talking about something that noone in the whole world can prove.
MY CONCLUSION:
If they really believe in such things, they need to study the fundamental laws of physics.
Never would have thunk I would find this so indsipensbale.