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Purpose Quote by Lawrence M. Krauss

“[I]n science we have to be particularly cautious about 'why' questions. When we ask, 'Why?' we usually mean 'How?' If we can answer the latter, that generally suffices for our purposes. For example, we might ask: 'Why is the Earth 93 million miles from the Sun?' but what we really probably mean…” quote by Lawrence M. Krauss
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““[I]n science we have to be particularly cautious about 'why' questions. When we ask, 'Why?' we usually mean 'How?' If we can answer the latter, that generally suffices for our purposes. For example, we might ask: 'Why is the Earth 93 million miles from the Sun?' but what we really probably mean is, 'How is the Earth 93 million miles from the Sun?' That is, we are interested in what physical processes led to the Earth ending up in its present position. 'Why' implicitly suggests purpose, and when we try to understand the solar system in scientific terms, we do not generally ascribe purpose to it.””

Lawrence M. Krauss

About This Quote

Source Interview: Science Talk, Lawrence M. Krauss, 2015

Scientific inquiry treats 'why' as a proxy for 'how,' focusing on mechanisms rather than purpose.

In simple terms: Science seeks explanations, not purposes.

Key Takeaway

Focus on mechanisms, not implied purpose.

Themes

science philosophy questions

Mood

analytical thoughtful

Type

educational philosophical

When to use this quote

  • education
  • research
  • public outreach

Key Concepts

causality epistemology methodology

Questions to Reflect On

  • How do you differentiate 'why' and 'how'?
  • Can purpose be meaning without in science?
A Different Perspective

Overlooks existential curiosity many some audiences.

3.2 out of 5 (5 ratings)

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