As a boy I was a hermit crab, but I soon came out of my shell. Now I am a pincer crab, and soon I will be at my full power as a deadly nuclear lobster

Strength is an empty shell.

It takes courage to love, but pain through love is the purifying fire which those who love generously know. We all know people who are so much afraid of pain that they shut themselves up like clams in a shell and, giving out nothing, receive nothing and therefore shrink until life is a mere living death.

Though the terror of the sea gives to none security, in the secret of the shell. Self preserving we may dwell.

If a turtle doesn’t have a shell, is he homeless or naked?