Leonard Wayne Sumner (born 18 May 1941), is a Canadian philosopher notable for his work on normative and applied ethics, political philosophy, and the philosophy of law.
In the central cases of physical pain, then, it appears that at least part of what is bad about our condition is the way it makes us feel. Here there seem to be no problems with a purely mental state account, no counterpart to the experience machine that could bring us to think that we are being deceived by mere appearances. [. . . ] If I am suffering physical pain then I can be quite wrong about the organic cause of my affliction, or even about whether it has one, without that error diminishing in the slightest either the reality of my pain or its impact on the quality of my life.
Brian Behlendorf
James Hetfield
Derrick Bell
Tom Waits
Camille Dungy
U. R. Ananthamurthy
Stanley Donen
Raheel Sharif
Kyle Kinane
Thomas Hardy
Hill Harper
Nadia Comaneci