From the Wise Sayings of Luqman
If you’re in prayer, take care of your heart;
If you’re eating, take care of your throat;
If you’re in another man’s house, take care of your eyes;
If you are among people, take care of your tongue.
Remember two matters and forget two matters:
Remember Allah (SWT) and death;
Forget any good that you have done to another and any evil that was done to you by another.”