Final answer:
The quote is from the play 'A Raisin in the Sun' by Lorraine Hansberry, which addresses African-American themes and struggles for a better life.
Step-by-step explanation:
The quote “Walter Lee say colored people ain't never going to start getting ahead till they start gambling on some different kinds of things in the world—investments and things. ... He needs this chance,” is from the literary work A Raisin in the Sun by Lorraine Hansberry. This work is a landmark play dealing with African-American themes and the aspirations and challenges faced by a black family in Chicago. The play explores various social and racial issues that the characters encounter as they dream of a better life and make decisions about their future.