Nature is brimming with animals that collaborate in large numbers. Bees stake out the best feeding spots and let others know where they are. Ants construct complex hierarchical homes built for defense ...

“I am like the midwife in that I cannot myself give birth to wisdom … The many admirable truths which [my students] bring to birth have been discovered by themselves from within.” Thus Socrates ...

When I took my children to the Museum of Science in Boston, I liked to sit them by the entrance of the cafeteria while we ate to provide a lesson about state of mind. People walking into the cafeteria ...