Mohamed Nureldin Abdallah / Reuters
Editor’s Note: This article previously appeared in a different format as part of The Atlantic’s Notes section, retired in 2021.

“You’re not going to brush your teeth with a bulldozer. That would be a mechanical mismatch,” Christopher Atkeson, a roboticist, on why robots should be soft.

“We became our own media. We became our own voices. We became credible in places where white media couldn’t go,”Johnetta Elzie, a Black Lives Matter activist, on the power of Twitter.

“When you actually try to build something you can’t hide from your ignorance. It either works or it doesn’t,” Drew Endy, a bioengineering professor.

(Previous quotes from our sources here)