Life sometimes reminds us that it is sometimes heartless by giving something or someone we really need to someone who does not need or even want them or it.
If a negative viewer looks at you with an ugly fiendish eye, find a way and pluck off his eyes, or better still, protect your good image.
(a.) Hardened; indurated.
(a.) Hardened in mind; insensible; unfeeling; unsusceptible.
A tearless heart is a callous heart.