President Levin, thank you very much. Dean Brodhead, fellows of the Yale Corporation, fellow Yale parents, families, and graduates: It’s a special privilege to receive this honorary degree. I wa
Hi, everybody. Today, I want to take a break from the back-and-forth of campaign season, and talk about something that's brought us all together this week—the Summer Olympics. These games remind
Cryptocurrencies are based on a special field of mathematics called cryptography. 加密货币是基于一种特殊的数学算法，称为密码学。 Cryptography is the study of how to secure communication, and it's about two really important
