Do not judge from mere appearances; for the lift laughter that bubbles on the lip often mantles over the depths of sadness, and the serious look may be the sober veil that covers a divine peace and joy. The bosom can ache beneath diamond brooches; and many a blithe heart dances under coarse wool. – Edwin Hubbel Chapin

Many individuals have, like uncut diamonds, shining qualities beneath a rough exterior. – Juvenal

Mysterious opals contain the wonders of the skies – sparkling rainbows, fireworks, and lightning, shifting and moving in their depths. – Author Unknown