George Villiers, 2nd Duke of Buckingham: Quotes about heart

George Villiers, 2nd Duke of Buckingham was English statesman and poet. Explore interesting quotes on heart.
George Villiers, 2nd Duke of Buckingham: 40   quotes 1   like

“She must be that which she to the world would seem,
For all true love is grounded on esteem:
Plainness and truth gain more a generous heart
Than all the crooked subtleties of art.”

"To His Mistress", cited from The Works of His Grace, George Villiers, the Duke of Buckingham (London: T. Evans, 1770) vol. 2, p. 138.
Context: She that would raise a noble love must find
Ways to beget a passion for her mind;
She must be that which she to the world would seem,
For all true love is grounded on esteem:
Plainness and truth gain more a generous heart
Than all the crooked subtleties of art.

“Make my breast
Transparent as pure crystal, that the world,
Jealous of me, may see the foulest thought
My heart holds.”

Beaumont and Fletcher Philaster, Act III, sc. ii, line 144.
These lines are used almost unaltered ("holds" becoming "does hold") in Act III, sc. ii of Buckingham's The Restauration, an adaptation of Philaster. They appear with an attribution to Buckingham in many 19th century collections of quotations, e.g. Henry George Bohn A Dictionary of Quotations from the English Poets (1867) p. 63, and hence also on several quotation websites.
Misattributed