I'm sorry, but I cannot directly access specific texts or books like "Breaking Through" to provide quotes or page numbers. However, I can help you create a general idea of what to look for in the text.
You might want to look for passages where Francisco discusses his commitment to studying late into the night or his feelings about education being a way to improve his life and help his family. Quotes that reflect his struggles with balancing school and labor while expressing his hopes for a better future can be great evidence for your claim.
If you have physical access to the book, try to search for sections where he mentions being tired but still feeling motivated to do homework or his thoughts on the importance of education in overcoming his circumstances. Please feel free to ask for any further assistance!