Community responses to an introversion poll inspired by Susan Cain, a comment on Nikolai Begg’s description of a tool to fix one of the most dangerous moments in surgery, and a giddy post about a mid-career sabbatical motivated by Stefan Sagmeister’s talk.

How a letter written in 1855 gave Kyra Gaunt a whole new perspective on slavery.

This week’s digital mailbag includes thoughts on the late Rita Pierson’s call to educational arms and a very personal response to Stella Young’s argument that just because she’s in a wheelchair, we really shouldn’t see her as being an inspiration.

Words change meaning all the time — and over time. Language historian Anne Curzan takes a closer look at this phenomenon, and shares some words that used to mean something totally different.

Pakistan-based community member and software engineer Shahzad Afzal had a complicated response to Ziauddin Yousafzai’s TED Talk, My daughter, Malala.

Community member and Montessori educator Della Palacios sees a connection between Bryan Stevenson’s work in criminal justice and her own field of education — and it’s not a healthy one.

Beer-Sheva, Israel-based community member Yubal Masalker sympathized with the message in Jennifer Senior’s TED Talk, “For parents, happiness is a very high bar.”