Science can only ascertain what is, but not what should be, and outside of its domain value judgments of all kinds remain necessary.

Summary

This quote suggests that while science can provide objective knowledge about the nature of things, it cannot provide guidance on how things ought to be. Science deals with facts and what exists or can be observed. However, determining what is good or morally right requires subjective value judgments that are outside the scope of science. This highlights the importance of values and ethics, suggesting that science alone is insufficient for making decisions or formulating judgments regarding what should be done.

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