Tirukkural 807: Familiarity

Those who have (long) stood in the path of affection will not give it up even if their friends cause (them) their ruin.

Image of Satguru Sivaya Subramuniyaswami
When we restrain our tendencies to deceive, to lie and break promises, our external life is uncomplicated, as is our subconscious mind. Honesty is the foundation of truth. It is ecologically, psychologically purifying.