| 1. | Necessity of theoretical knowledge. - from The Notebooks of Leonardo Da Vinci, Complete by Leonardo Da Vinci |
| 2. | Having never before taken any interest in educational questions, Alexey Alexandrovitch devoted some time to the theoretical study of the subject. - from Anna Karenina by Leo Tolstoy |
| 3. | "He has his own little methods, which are, if he won't mind my saying so, just a little too theoretical and fantastic, but he has the makings of a detective in him. - from The Adventures of Sherlock Holmes by Arthur Conan Doyle |
| 4. | This however is rather theoretical than for practice, because you stand close by Footnot. - from The Notebooks of Leonardo Da Vinci, Complete by Leonardo Da Vinci |
| 5. | Was the knowledge possessed by both of each of these languages, the extinct and the revived, theoretical or practica. - from Ulysses by James Joyce |
| 6. | _It is hardly necessary to offer any excuses for the division carried out in the arrangement of the text into practical suggestions and theoretical enquiries. - from The Notebooks of Leonardo Da Vinci, Complete by Leonardo Da Vinci |
| 7. | The reader will not be surprised if, for various reasons, we do not here treat in a thorough manner, from the theoretical point of view, the questions raised by socialism. - from Les Miserables by Victor Hugo |
| 8. | The theoretical conclusions of the Communists are in no way based on ideas or principles that have been invented, or discovered, by this or that would-be universal reformer. - from The Communist Manifesto by Karl Marx and Friedrich Engels |
| 9. | According to this arrangement of the materials for the theoretical portion of the _libro di pittura_ propositions in Perspective and in Optics stand side by side or occur alternately. - from The Notebooks of Leonardo Da Vinci, Complete by Leonardo Da Vinci |
