Combining Texts

All the ideas for 'Wisdom', 'Natural Science (lost)' and 'Rules for the Direction of the Mind'

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3 ideas

1. Philosophy / A. Wisdom / 3. Wisdom Deflated
The devil was wise as an angel, and lost no knowledge when he rebelled [Whitcomb]
7. Existence / A. Nature of Existence / 6. Criterion for Existence
Everything exists which anyone perceives [Metrodorus of Chios]
11. Knowledge Aims / B. Certain Knowledge / 1. Certainty
In pursuing truth, anything less certain than mathematics is a waste of time [Descartes]