Stand firm against evil thoughts

Stand firm against evil thoughts
Stand firm against evil thoughts, for if you fail todo so, they will
become ideas, if you do not, they will become desires, so fight
against them. If youdo not, they will become a form of determination
and intention, if you do not resist, they will become actions, and if
you do not follow them up with their opposite, they will become habits
that will be hard to quit.
Imam Ibn Al-Qayyim