Question

"Knowledge always desires increase: it is like fire, which must first be kindled by some external agent, but which will afterwards propagate itself." --Samuel Johnson

Which rhetorical device is used in the sentence?
A) Allusion
B) Analogy
C) Oxymoron
D) Parallelism

Answer 1

I believe the answer is B, analogy

Answer 2

The answer is:

B) Analogy

An anology is used when you compare ine thing to another, in this case the author relates Knowledge and fire, and he then explains why he thinks they´re alike.