| 16721 | Changes in secondary qualities are caused by changes in primary qualities |
| Full Idea: Every alteration in secondary qualities is caused by some alteration made in the primary qualities. | |
| From: Giles of Orleans (On 'Generation and Corruption' [1270], I.6c) | |
| A reaction: Pasnau calls this the 'supervenience' thesis, here with the addition of causation. Was this doctrine retained by Locke and Boyle? |