Hermann von Helmholtz

Jean Racine, Charles Darwin, Charles W. Eliot, Niccolò Machiavelli, Jacob Grimm, Oliver Goldsmith, Michel de Montaigne, John Milton, Molière, Plato, Confucius, Hans Christian Andersen, Wilhelm Grimm, Voltaire, Miguel de Cervantes, Benjamin Franklin, Pierre Corneille, Virgil, Adam Smith, Dante Alighieri, William Shakespeare

Charles W. Eliot with William A. Neilson, John Woolman, Molière, Nathaniel Hawthorne, Walter Raleigh, John Bunyan, Michel de Montaigne, Joseph Lister, Blaise Pascal, Francis Beaumont, Edward Everett Hale, William Penn, Edgar Allan Poe, Ernest Renan, William Hazlitt, Philip Massinger, Bjørnstjerne Bjørnson, Robert Browning, Friedrich Schiller, Sophocles, Christopher Marlowe, Plato, Percy Bysshe Shelley, Thomas Malory, Archibald Geikie, Philip Sidney, Euripides, Hermann von Helmholtz, Hans Christian Andersen, Edmund Burke, Hippocrates, Miguel de Cervantes, Thomas Browne, Thomas à Kempis, William Roper, Ralph Waldo Emerson, David Garrick, Ambroise Paré, Niccolò Machiavelli, Francis Drake, Oliver Goldsmith, Richard Henry Dana Jr., Jean Racine, Aesop, Charles-Augustin Sainte-Beuve, Mark Twain, Alexander L. Kielland, Francis Pretty, Walter Bigges, Edward Haies, Dante Alighieri, William Henry Harrison, George Sand, Thomas More, Benjamin Franklin, William Makepeace Thackeray, Gottfried Keller, Martin Luther, Samuel Taylor Coleridge, Aeschylus, Richard Steele, Louis Pasteur, Pierre Corneille, Ivan Turgenev, Joseph Addison, Alfred de Musset, Saint Augustine, Marcus Tullius Cicero, George Eliot, Henry Fielding, George Berkeley, Wilhelm Grimm, Henry James, Fyodor Dostoevsky, Giuseppe Mazzini, Adam Smith, Homer, John Stuart Mill, Pliny the Younger, Robert Louis Stevenson, Michael Faraday, Alessandro Manzoni, Theodor Fontane, Plutarch, Alphonse Daudet, Thomas Dekker, Marcus Aurelius, Philip Nichols, James Russell Lowell, Laurence Sterne, Charles Lamb, Johann Wolfgang von Goethe, Oliver Wendell Holmes Sr., Tacitus, Jane Austen, Herodotus, Gotthold Ephraim Lessing, Washington Irving, Simon Newcomb, William Shakespeare, Jonathan Swift, Walter Scott, John Dryden, Robert Burns, Lord Byron, John Webster, Voltaire, Leo Tolstoy, Victor Hugo, Juan Valera, Thomas Hobbes, Epictetus, Benvenuto Cellini, Samuel Johnson, Leigh Hunt, Ben Jonson, Aristophanes, Immanuel Kant, David Hume, John Milton, Theodor Storm, Bret Harte, René Descartes, Charles Darwin, Richard Brinsley Sheridan, Sir Francis Bacon, John Fletcher, Pedro Calderón de la Barca, William Harvey, John Locke, Sydney Smith, Jean-Jacques Rousseau, Abraham Cowley, Honoré de Balzac, Henry David Thoreau, John Ruskin, Daniel Defoe, Guy de Maupassant, Thomas Babington Macaulay, Thomas Carlyle, Izaak Walton, Jean Froissart, Virgil, Thomas De Quincey

Michael Faraday with Simon Newcomb, Archibald Geikie, Hermann von Helmholtz, William Thomson

Charles W. Eliot

Charles W. Eliot with Richard Steele, Saint Augustine, William Shakespeare, Henry David Thoreau, Leigh Hunt, Ben Jonson, Alexander L. Kielland, Mark Twain, Edgar Allan Poe, Richard Brinsley Sheridan, Daniel Defoe, Bjørnstjerne Bjørnson, Niccolò Machiavelli, John Bunyan, Epictetus, Thomas Browne, Philip Massinger, Ernest Renan, Samuel Taylor Coleridge, Plutarch, Homer, William Hazlitt, David Hume, Bret Harte, Izaak Walton, Thomas Hobbes, Honoré de Balzac, Hermann von Helmholtz, Leo Tolstoy, Nathaniel Hawthorne, Simon Newcomb, John Fletcher, Benvenuto Cellini, Ralph Waldo Emerson, Michel de Montaigne, Theodor Storm, Philip Nichols, George Sand, Lord Byron, William Harvey, Percy Bysshe Shelley, Philip Sidney, Plato, Virgil, Theodor Fontane, Thomas Dekker, Pedro Calderón de la Barca, Herodotus, Michael Faraday, James Russell Lowell, William Makepeace Thackeray, Martin Luther, Molière, John Woolman, Hans Christian Andersen, Charles Lamb, Jonathan Swift, Juan Valera, Alphonse Daudet, Jean Racine, Aristophanes, Victor Hugo, Immanuel Kant, Miguel de Cervantes, Abraham Cowley, Edward Haies, Francis Drake, Aeschylus, William Roper, Henry Fielding, Friedrich Schiller, William Henry Harrison, Edward Everett Hale, Oliver Wendell Holmes Sr., George Eliot, Walter Bigges, Laurence Sterne, Sydney Smith, Thomas Carlyle, John Webster, Robert Browning, Marcus Aurelius, Francis Beaumont, Ambroise Paré, George Berkeley, Thomas More, Ivan Turgenev, Jane Austen, Alessandro Manzoni, Richard Henry Dana, Sophocles, David Garrick, Adam Smith, Charles Augustin Sainte-Beuve, Walter Raleigh, John Milton, Aesop, Voltaire, Tacitus, Gottfried Keller, Euripides, Thomas De Quincey, Pierre Corneille, John Dryden, Gotthold Ephraim Lessing, Pliny the Younger, Blaise Pascal, Archibald Geikie, Charles Darwin, Samuel Johnson, John Stuart Mill, Thomas Babington Macaulay, Marcus Tullius Cicero, Robert Burns, Francis Bacon, René Descartes, Hippocrates, William A. Neilson, Wilhelm Grimm, Edmund Burke, Christopher Marlowe, Thomas à Kempis, Oliver Goldsmith, John Ruskin, Guy de Maupassant, Benjamin Franklin, Washington Irving, Jean-Jacques Rousseau, Francis Pretty, Jean Froissart, Louis Pasteur, Dante Alighieri, Fyodor Dostoevsky, Joseph Lister, Henry James, John Locke, Alfred de Musset, William Penn, Thomas Malory, Walter Scott, Giuseppe Mazzini, Joseph Addison, Robert Louis Stevenson

Hermann von Helmholtz

Hermann von Helmholtz

Hermann L. F. Helmholtz

Hermann von Helmholtz

Charles W. Eliot with Archibald Geikie, Michael Faraday, Hermann von Helmholtz, William Thomson, Simon Newcomb