A blot in thy escutcheon to all futurity.

There is no jewel in the world so valuable as a chaste and virtuous woman.

I shall be as secret as the grave.

If you are ambitious of climbing up to the difficult, and in a manner inaccessible, summit of the Temple of Fame, your surest way is to leave on one hand the narrow path of Poetry, and follow the narrower track of Knight-Errantry, which in a trice may raise you to an imperial throne.

Necessity urges desperate measures.

There is also this benefit in brag, that the speaker is unconsciously expressing his own ideal. Humor him by all means, draw it all out, and hold him to it.

For neither good nor evil can last for ever; and so it follows that as evil has lasted a long time, good must now be close at hand.