Answer:
ex tempore
Explanation:
The English word for "to speak without notes" is Extemporaneous. The origin of the Extemporaneous comes from the mid-17th century Latin word ex tempore. Ex tempore literally means out of time.
Impromptu is a similar word in which means to talk spontaneously without preparation while Extemporaneous involves preperation but the speech is delivered without notes.
This statement means that books are a tool that have the ability to take carry you to another world as a car takes you to somewhere physical, a book lets your mind wander to places in your imagination.