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All the ideas for 'works', 'On Motion' and 'Rules for the Direction of the Mind'
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3 ideas
11. Knowledge Aims / B. Certain Knowledge / 1. Certainty
9807
In pursuing truth, anything less certain than mathematics is a waste of time
[Descartes]
27. Natural Reality / B. Modern Physics / 1. Relativity / a. Special relativity
12709
Motion is not absolute, but consists in relation
[Leibniz]
29. Religion / B. Monotheistic Religion / 4. Christianity / d. Heresy
16714
The state should kill blasphemous heretics
[Erasmus]