Self-motion

Definition and stakes

Portrait of Plato Plato,  Laws

“ Nothing can be affected by any transition prior to self-motion. Then the first and eldest principle of motion, whether in things at rest or not at rest, will be the principle of self-motion; and that which is moved by others and can move others will be the second. 'True.' Let me ask another question:
What is the name which is given to self-motion when manifested in any material substance? 'Life.' And soul too is life?
”
Source: Gutenberg

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