| I., Friedrich | (1657 - 1713) | 1 | Zitat |
| Iacocca, Lee | (1924 - 2019) | 11 | Zitate |
| Ibsen, Henrik | (1828 - 1926) | 26 | Zitate |
| Ikeda, Daisaku | (*1928) | 3 | Zitate |
| Ikor, Roger | (- 1986) | 1 | Zitat |
| Immermann, Karl Leberecht | (1796 - 1840) | 4 | Zitate |
| Inge, William Ralph | (1860 - 1954) | 4 | Zitate |
| Ingersoll, Robert G. | (1833 - 1899) | 7 | Zitate |
| Ingres, Jean-Auguste-Dominique | (1780 - 1867) | 1 | Zitat |
| Ingrisch, Lotte | (*1930) | 2 | Zitate |
| Inman, Bobby Ray | (*1931) | 1 | Zitat |
| Ionesco, Eugène | (1909 - 1994) | 10 | Zitate |
| Iqbal, Muhammad | (1877 - 1938) | 3 | Zitate |
| Iribarne, Manuel Fraga | (1922 - 2012) | 1 | Zitat |
| Irons, Jeremy | (*1948) | 1 | Zitat |
| Irving, John Wislow | (*1942) | 1 | Zitat |
| Irving, Washington | (1783 - 1859) | 7 | Zitate |
| Israel, Sprichwort | | 2 | Zitate |
| Iuvenalis, Juvenal | (*60) | 1 | Zitat |
| IX., Karl | (1550 - 1574) | 1 | Zitat |