“Until this century, most of mankind lived in small communities. What each did could affect only a few others. But conditions have now changed. Each of us can now, in countless ways, affect countless other people. We can have real though small effects on thousands or millions of people. When these effects are widely dispersed, they may be either trivial, or imperceptible. It now makes a great difference whether we continue to believe that we cannot have greatly harmed r benefited others unless there are people with obvious grounds for resentment or gratitude.”

— Derek Parfit , book Reasons and Persons

Source: Reasons and Persons (1984), p. 86

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Derek Parfit 24

British philosopher 1942–2017

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