Truth is so rare that it is delightful to tell it.

Truth is such a rare thing, it is a delight to tell it.

The truth must dazzle gradually or every man be blind.

Tell all the Truth, but tell it slant/Success in Circuit lies...

To rise from error to truth is rare and beautiful.

A charm invests a face
Imperfectly beheld,—
The lady dare not lift her veil
For fear it be dispelled.

But peers beyond her mesh,
And wishes, and denies,—
Lest interview annul a want
That image satisfies.