Date: w. 1757-1758, 1861

"Nous ne voyons ni l'âme d'autrui, parce qu'elle se cache, ni la notre, parce que nous n'avons point de miroir intellectuel [We do not see the soul of others, because it hides itself, nor our own, because we have no intellectual mirror]."

— Rousseau, Jean-Jacques (1712-1778)

Date: 1774

"A strong mind sees things in their true proportions; a weak one views them through a magnifying medium, which, like the microscope, makes an elephant of a flea: magnifies all little objects, but cannot receive great ones."

— Stanhope, Philip Dormer, fourth earl of Chesterfield (1694-1773)

Date: 1774

"A learned parson, rusting in his cell, at Oxford or Cambridge, will reason admirably well upon the nature of man; will profoundly analyze the head, the heart, the reason, the will, the passions, the senses, the sentiments, and all those subdivisions of we know not what; and yet, unfortunately, h...

— Stanhope, Philip Dormer, fourth earl of Chesterfield (1694-1773)

Date: w. October 27, 1777, printed 1788

"In a man's letters, you know, Madam, his soul lies naked, his letters are only the mirror of his breast, whatever passes within him is shown undisguised in its natural process."

— Johnson, Samuel (1709-1784)

Date: w. August 30, 1783, printed 1788

"I advised our Miss H--- to the same remedy, but have a notion her mind is haunted by one particular image; if so, nothing will cure her; for if the heart be broken 'tis broken like a looking-glass, and the smallest piece will for ever preserve and reflect the same figure till 'tis again ground d...

— Piozzi, [née Salusbury; other married name Thrale] Hester Lynch (1741-1821)