John D. Rockefeller：Random Reminiscences of Men and Events, Additional Excerpt 211

How far may this spirit of sacrifice properly extend? A great number of scientific men every year give up everything to arrive at some helpful contribution to the sum of human knowledge, and I have sometimes thought that good people who lightly and freely criticize their actions scarcely realize just what such criticism means. It is one thing to stand on the comfortable ground of placid inaction and put forth words of cynical wisdom, and another to plunge into the work itself and through strenuous experience earn the right to express strong conclusions.

Source： https://www.gutenberg.org/ebooks/17090
Locator：Additional excerpt 211 · Verified：2026-10-19 · Verification：Short excerpt

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