—  Diogenes, 410-323 BC, Ancient Greek Cynic philosopher

—  Lao-Tzu, 6th cent. BC, Chinese philosopher

—  Epicurus, 341-270 BC, Ancient Greek philosopher

—  G. K. Chesterton, 1874-1936, English writer & critic

—  Frank Sinatra, 1915-1998, American singer

—  Elbert Hubbard, 1856-1915, American writer

—  Dr. Thomas Fuller, 1654-1734,  English physician and adage collector

—  Joseph Joubert, 1754-1824, French author of maxims

—  Immanuel Kant, 1724-1804, German philosopher

—  Niccolò Machiavelli, 1469-1527, Italian political philosopher

—  Bias of Priene, 625-540 BC, one of the 7 sages of Ancient Greece

—  André Gide, 1869-1951, French writer, Nobel 1947

—  Saint Thomas Aquinas, 1225-1274, Italian Dominican friar & philosopher

—  Marcel Proust, 1871-1922, French writer

—  Edward Gibbon, 1737-1794, English historian

—  Georges Feydeau, 1862-1921, French playwright

—  François Rabelais, 1484-1553, French writer

     (His last will)

—  Molière, 1622-1673, French playwright

—  Nikos Kazantzakis, 1883-1957, Greek writer

—  Hermann Hesse, 1877-1962, German writer, Nobel 1946

—  Napoleon Hill, 1883-1970, American self-help writer

—  François-René de Chateaubriand, 1768-1848, French poet & politician

—  Miguel Cervantes, 1547-1616, Spanish writer

—  Leonardo da Vinci, 1452-1519, Italian polymath & painter

Nemo dat quod non habet.

—  Latin phrase

     (meaning: the purchase from someone who had no ownership right, cancels the right of the purchaser too)

Habere non Haberi.

—  Gabriele D’ Annunzio, 1863-1938, Italian poet

     (originally from Aristippus)

Magna servitus est magna fortuna.

—  Seneca, 5 AD-65 AD, Roman philosopher

—  Bob Marley, 1945-1981, Jamaican singer

Σοφία μόνον κτημάτων αθάνατον.

—  Isokrates, 436-338 BC, Ancient Greek rhetorician

Εξ εργασίας θηριώδους ουσίας μεν πλήθος συσσωρεύεται, βίος δε ταλαίπωρος συνίσταται.

—  Epicurus, 341-270 BC, Ancient Greek philosopher

Άριστον ανδρί κτήμα συμπαθής γυνή.

—  Euripides, 480-406 BC, Ancient Greek tragedian ‐ Antigone

Μισεί γαρ ο θεός την βίαν, τα κτητά δε κτάσθαι κελεύει πάντας ουκ ες αρπαγάς.

—  Euripides, 480-406 BC, Ancient Greek tragedian ‐ Helen

—  Turkish proverb