Quote of the day
No written law has ever been more binding than unwritten custom supported by popular opinion.
Antoine Arnauld
![Antoine Arnauld](/img/nopic_profile.png)
Born: February 6, 1612
Died: August 6, 1694 (aged 82)
Bio: Antoine Arnauld le Grand, as contemporaries called him, to distinguish him from his father was a French Roman Catholic theologian, philosopher, and mathematician.
Known for:
- Port-Royal Logic (1662)
- Port-Royal Grammar (1660)
- Logic, or, The art of thinking
- On True and False Ideas
- The Art of Thinking: Port-Royal Logic