A meaningful quote and/or a universal idea could serve as hooks for the introuction of a literary analysis.
An analgy or metaphor is typically used in a compare contrast essay, a definition of terms is more for a research paper as is a startling fact.
The answer would be because it uses a direct quotation from the author of the source used.
Answer is effort
You won’t achieve anything with inactivity
Hesitation might force you to change goals
Success is accomplishing your goals