What are 2 positives of andrew Carnegie and 2 negatives

Good:

Andrew Carnegie (1835-1919) was one of the most successful businessmen and most recognized philanthropists in history. His entrepreneurial ventures in America's steel industry earned him millions and he, in turn, made great contributions to social causes such as public libraries, education and international peace.

Bad:

Andrew Carnegie, the most contradictory of the robber barons: he supported workers' rights, but destroyed unions; and when he acquired the largest fortune in US history, he tried to give it away.

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