“ The idea of motion necessarily supposes that of a body moving. Now what is our idea of the moving body, without which motion is incomprehensible? It must resolve itself into the idea of extension or of solidity; and consequently the reality of motion depends upon that of these other qualities. ”
David Hume, A Treatise of Human Nature (1738). copy citation
| Author | David Hume |
|---|---|
| Source | A Treatise of Human Nature |
| Topic | reality solidity |
| Date | 1738 |
| Language | English |
| Reference | |
| Note | |
| Weblink | http://www.gutenberg.org/files/4705/4705-h/4705-h.htm |
Context
“If colours, sounds, tastes, and smells be merely perceptions, nothing we can conceive is possest of a real, continued, and independent existence; not even motion, extension and solidity, which are the primary qualities chiefly insisted on.
To begin with the examination of motion; it is evident this is a quality altogether inconceivable alone, and without a reference to some other object. The idea of motion necessarily supposes that of a body moving. Now what is our idea of the moving body, without which motion is incomprehensible? It must resolve itself into the idea of extension or of solidity; and consequently the reality of motion depends upon that of these other qualities. This opinion, which is universally acknowledged concerning motion, I have proved to be true with regard to extension; and have shewn that it is impossible to conceive extension, but as composed of parts, endowed with colour or solidity.” source
To begin with the examination of motion; it is evident this is a quality altogether inconceivable alone, and without a reference to some other object. The idea of motion necessarily supposes that of a body moving. Now what is our idea of the moving body, without which motion is incomprehensible? It must resolve itself into the idea of extension or of solidity; and consequently the reality of motion depends upon that of these other qualities. This opinion, which is universally acknowledged concerning motion, I have proved to be true with regard to extension; and have shewn that it is impossible to conceive extension, but as composed of parts, endowed with colour or solidity.” source
