In every human Breast, God has implanted a Principle, which we call Love of Freedom; it is impatient of Oppression, and pants for Deliverance.

Phyllis Wheatley (1753-1784) African-American poet, manumitted (1773) enslaved person [also "Phillis" and/or "Wheatly"]

Letter (1774-02-11) to Samson Occom
    (Source)

Regarding slavery. First printed in the Connecticut Gazette (1774-03-11) through Rev. Occom, her longtime friend.