#  How Berkeley Can Go Quasi and Lose His Mind-Dependence 

 



    ![John Smibert - Bishop George Berkeley, 1727? - Google Art Project](/sites/g/files/omnuum9471/files/styles/hwp_5_4__480x385/public/2025-09/Screenshot%202025-09-08%20at%203.33.37%E2%80%AFPM.png?itok=aXEATj0q) 

 



 

####  calendar\_today Date and Time 

 **September 19, 2025** 

 03:00PM - 05:00PM EDT 

####  pin\_drop Location 

 **Emerson Hall 210, Harvard Yard**  

 [Cambridge, MA 02138  
United States



 ](<https://www.google.com/maps?q=US MA Cambridge 02138>) 



 

 



 

Host: Harvard Department of Philosophy, Colloquium Lecture

Speaker: Bart Streumer (University of Groningen)

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**Abstract:** Berkeley defends idealism partly by taking ordinary objects such as tables and stones to consist of ideas. Materialists reject this account of ordinary objects. I argue that Berkeley can undermine this rejection by making quasi-realist moves of the kind that many expressivists about normativity make. This ultimately results in a version of idealism that we cannot believe, since trying to believe it will make us believe materialism. But I argue that this version of idealism may nevertheless be true.

[More information](https://philosophy.fas.harvard.edu/event/colloquium-lecture-bart-streumer-university-groningen-how-berkeley-can-go-quasi-and-lose-his)



 

 



 

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