Shakespeare, 13th January

                       Give thy thoughts no tongue,

Nor any unproportioned thought his act.

Be thou familiar, but by no means vulgar.

Those friends thou hast, and their adoption tried,

Grapple them to thy soul with hooks of steel;

But do not dull thy palm with entertainment

Of each new-hatch'd, unfledged comrade.

                                                    Hamlet, Act i., Sc. 3.