Date: 2007

"And at the same time, a censor somewhere in my brain was simplifying things for me, helping me to cope with the necessary."

— Engel, Howard (b. 1931)

Date: September 2, 2011

"When we fight an urge, it feels like a strenuous effort, as if there were a homunculus in the head that physically impinged on a persistent antagonist."

— Pinker, Steven (b. 1954)

Date: September 2, 2011

"The 'will' in willpower is not some mysterious 'free will,' a ghost in the machine that can do as it pleases, but a part of the machine itself."

— Pinker, Steven (b. 1954)

Date: December 31, 2016

"Rather (in the words of the neuroscientist Georg Striedter), brains evolve like companies do: they reorganize as they expand."

— Barrett, Lisa Feldman (b. 1963)