Oysters speaking doesn't give a pearl.

Oysters speaking doesn't give a pearl. (Les huîtres qui parlent - N'ont pas de perle)

All art is autobiographical. The pearl is the oyster's autobiography.

The 'pearl in the oyster' is being able to run an application in a machine, but not alter the machine in any way.

There are some who believe we are going to have an electronic Pearl Harbor, so to speak, before we really make (computer security) the kind of priority that many of us believe it deserves to be,

The black clouds make the black sea. (Les nuages noirs - Font la mer noire)”