Final answer:
Andrew Carnegie believed that wealthy individuals should use their wealth to benefit society by funding institutions such as hospitals, libraries, and colleges.
Step-by-step explanation:
In his writings and actions, Andrew Carnegie expressed his belief that wealthy individuals had a responsibility to give back to society. He believed that successful industrialists should use their wealth to benefit the less fortunate. Carnegie's concept of philanthropy and social responsibility is best summarized in his famous essay, The Gospel of Wealth, where he advocated for the wealthy to fund institutions such as hospitals, libraries, and colleges.