It is strange that a person may find it easy to protect himself from: eating Haraam, oppression and injustice, adultery, theft, drinking khamr (alcoholic drinks), and from unlawful looking, but it is hard for him to restrain the movement of his tongue. How often do we see people who are very cautious about falling into shameful deeds or injustice, but their tongue lashes against the living and the dead and they don't mind it?
Ibn TaymiyyahThe one who is [truly] imprisoned is the one whose heart is imprisoned from Allah and the captivated one is the one whose desires have enslaved him.
Ibn TaymiyyahMake tawba not just for sins you've committed, but also for obligations you haven't fulfilled.
Ibn TaymiyyahAvoiding the temptation to sin and being patient upon that, is greater than being patient whilst being afflicted with trials.
Ibn TaymiyyahAmong the principles of the Ahlus Sunnah wal Jama'ah lie the attitude of peace and purity of their heart and tongue towards the Sahaba(Companions) of the Prophet (saw).
Ibn Taymiyyah