Trust not a man: we are by nature false,
Dissembling, subtle, cruel and inconstant;
When a man talks of love, with caution hear him;
But if he swears, he'll certainly deceive thee.
The Orphan. T. OTWAY.

Nay, women are frail too;
Ay, as the glasses where they view themselves;
Which are as easy broke as they make forms.
Measure for Measure, Act ii. Sc. 4. SHAKESPEARE.

In part to blame is she,
Which hath without consent bin only tride:
He comes too neere that comes to be denide.
A Wife. SIR T. OVERBURY.

The heart!—Yes, I wore it
As sign and as token
Of a love that once gave it,
A vow that was spoken;
But a love, and a vow, and a heart,
Can be broken.
Hearts. A.A. PROCTER.

A love that took an early root,
And had an early doom.
The Devil's Progress. T.K. HERVEY.

Or as one nail by strength drives out another,
So the remembrance of my former love
Is by a newer object quite forgotten.
Two Gentlemen of Verona, Act ii. Sc. 4. SHAKESPEARE.

All love may be expelled by other love,
As poisons are by poisons.
All for Love. J. DRYDEN.

At lovers' perjuries,
They say, Jove laughs.
Romeo and Juliet, Act ii. Sc. 2. SHAKESPEARE.

Fool, not to know that love endures no tie,
And Jove but laughs at lovers' perjury.
Palamon and Arcite, Bk. II. J. DRYDEN.

They that do change old love for new,
Pray gods, they change for worse!
The Arraignment of Paris: Cupid's Curse. G. PEELE.