Speech remains as a slave to you, but the moment it leaves your mouth, you become its slave.
Ibn Qayyim Al-JawziyyaThe perfection of Tawheed is found when there remains nothing in the heart except Allaah
Ibn Qayyim Al-JawziyyaThis wordly life is like a shadow. If you try to catch it, you will never be able to do so. If you turn your back towards it, it has no choice but to follow you.
Ibn Qayyim Al-JawziyyaRepel the thought, for if you don't, it becomes an idea. So repel the idea, for if you don't it will become a desire. So fight against that(desire), for if you don't, it will become a determination and a passion. And if you don't repel that, it will become an action. And if you don't replace it with its opposite, it will become a constant habit. So at that point, it will be difficult for you to change it.
Ibn Qayyim Al-Jawziyya