Lucas Jackson / Reuters

Here are the best quotes we heard from our sources today. (Click through to read the full stories.)

Kathryn Sullivan (pictured above), an astronaut and climate scientist: “We live on a very dynamic planet, and Mother Nature will do what she wants.”

Raquel Cool, who advocates for egg donors, on the donation process: “You’re not really in a financial position to rock the boat.”

Roy Grinker, author of Unstrange Minds: Remapping the World of Autism: “I have no confidence that in 30 years we’ll still use the word ‘autism.’

(Previous quotes from our sources here)