This paper, thus sealed up.

(Julius Caesar, Act II, Sc. 3.)

Brutus: “O Cassius, you are yoked with a lamb

That carries anger as the flint bears fire.

(Julius Caesar, Act IV, Sc. 3.)

Enobarbus: “Throw my heart

Against the flint and hardness of my fault.

(Antony and Cleopatra, Act IV, Sc. 9.)

Thersites: “There were wit in this head, an ’twould out: and so

there is, but it lies a coldly in him as fire in a flint,