| 1. | All rational delight, wherein the brut. - from Paradise Lost by John Milton |
| 2. | "Yes, there they build in a rational fashion.... - from Anna Karenina by Leo Tolstoy |
| 3. | Birthdays are of no importance to a rational being. - from Anna Karenina by Leo Tolstoy |
| 4. | I wonder who it was defined man as a rational animal. - from The Picture of Dorian Gray by Oscar Wilde |
| 5. | He could not meet her in conversation, rational or playful. - from Emma by Jane Austen |
| 6. | All of us as rational beings can't do anything else but live for our belly. - from Anna Karenina by Leo Tolstoy |
| 7. | Surely there must be some rational explanation of all these mysterious things. - from Dracula by Bram Stoker |
| 8. | That is a very rational notion, he said. - from The Republic by Plato |
| 9. | multiplied alpha by the rational diameter o. - from The Republic by Plato |
| 10. | _The numerous notes as to the laws and rationale of the flight of birds, are scattered through several note-books. - from The Notebooks of Leonardo Da Vinci, Complete by Leonardo Da Vinci |
