DEUT1578 One must do all for the sake of the Almighty, Who looks into one's heart as it is written (Yirmeyahu 17:10): "I am Hashem, who searches the heart and examines the innards," and [this verse]: "The hidden things are [known] to Hashem our God." Therefore, let the proud man know that if he does not take care with wisdom and zeal to rescue himself from pride, though he may possess Torah and good deeds, he inherits Gehinnom. For the evil inclination lies in ambush for him and brings arguments and rationalizations to lead him to pride in order to drive him from the world. Therefore, one must not be slack in conquering the evil inclination every day.