Combining Texts

All the ideas for 'fragments/reports', 'works' and 'The Realm of Matter'

expand these ideas     |    start again     |     specify just one area for these texts

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5 ideas

7. Existence / A. Nature of Existence / 6. Criterion for Existence

18521

The criterion of existence is the possibility of action [Santayana]

25. Social Practice / E. Policies / 5. Education / b. Education principles

13304

Learned men gain more in one day than others do in a lifetime [Posidonius]

27. Natural Reality / A. Classical Physics / 2. Thermodynamics / b. Heat

20645

Heat is a state of vibration, not a substance [Joule]

20972

Joule showed that energy converts to heat, and heat to energy [Joule, by Papineau]

27. Natural Reality / D. Time / 1. Nature of Time / d. Time as measure

20820

Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus]