Autores:
  • Todo hombre se persuade naturalmente de que puede cumplir sus propósitos, y sólo se convence de su imbecilidad por el tiempo transcurrido y la frecuencia de los experimentos.

    James Boswell, Samuel Johnson (1824). "La vida de Samuel Johnson, LL. D., Comprehending an Account of His Studies, and Numerous Works, in Chronological Order: A Series of His Epistolary Correspondence and Conversations with Many Eminent Persons; and Various Original Pieces of His Composition, Never Before Published; the Whole Exhibiting a View of Literature and Literary Men in Great Britain, for Near Half a Century During which He Flourished", p.99.