Tirukkural 940: Gambling

As the gambler loves (his vice) the more he loses by it, so does the soul love (the body) the more it suffers through it.

Image of Satguru Sivaya Subramuniyaswami
Faithfulness in marriage means fidelity and much more. It includes mental faithfulness, non-flirtatiousness and modesty toward the opposite sex. A married man, for instance, should not hire a secretary who is more magnetic or more beautiful than his wife.
—Gurudeva