Their strength is secret. They send ferocious roots beneath the ground. They grow up and grow down and grab the earth between their hairy toes and bite the sky with violent teeth and never quit their anger. This is how they keep.

From the story–The House on Mango Street

Explanation:

In this story, particularly in chapter 29 we read about the role of "four skinny trees" in the life of Esperanza which were beside her house. We are told about them: "Their strength is secret. They send ferocious roots beneath the ground. They grow up and grow down and grab the earth between their hairy toes and bite the sky with violent teeth and never quit their anger. This is how they keep".

In a sense, Esperanza is motivated by the trees.

citizens are given 25 years of life to prove their worth to society; if they fail to do great things

awnser:

one thing blogging and good copywriting share is a conversational style, and that means it’s fine to fracture the occasional rule of proper grammar in order to communicate effectively. both bloggers and copywriters routinely end sentences with prepositions, dangle a modifier in a purely technical sense, or make liberal use of the ellipsis when an em dash is the correct choice-all in order to write in the way people actually speak. but there are other mistakes that can detract from your credibility. while we all hope what we have to say is more important than some silly grammatical error, the truth is some people will not subscribe or link to your blog if you make dumb mistakes when you write, and buying from you will be out of the question.