by John Marshall, Kirk v. Smith Penn — Opinion of the Court
“ What is gained by an estate's continuing an equitable estate? From its inherent strength, unaided by the law, if accompanied with continued possession, it would continue a good equitable estate; and why should not the comprehensive words, 'shall for ever give an unquestionable title against all,' be construed into a transmutation from an equitable into a legal title? How can any but a good legal title be denominated an unquestionable title? ”
