And let's be clear: It's not enough just to limit ads for foods that aren't healthy. It's also going to be critical to increase marketing for foods that are healthy.

"Memory is a fragile thread that connects us to what we have lost."

Science is not just about facts, but about understanding the underlying principles that govern those facts.

生命因为失去爱情而更丰盛。

"The scientist is not a person who gives the right answers, he's one who asks the right questions."