So they're learning from each other. And research bears this out. 乌鸦通过互相学习，都掌握了这种技巧。 Parents seem to be teaching their young. They learn from their peers, they learn from their enemies. 乌鸦父母还教会自己的孩子这样

REMARKS BY THE PRESIDENTON THE ECONOMY THE PRESIDENT: Good afternoon, everybody. I'd like to say a few words about the state of our economy, and what we're doing to put Americans back to work and buil

Science has surfaced many, many more indicators. 科学发现了更多的指示标。 We know, for example, we know liars will shift their blink rate, point their feet towards an exit. 比如说，骗子会改变他们眨眼的频率，他们的脚会对着出口。 They will t

How to Be Popular Most people would like to be popular with others, but not everyone can achieve this goal. What is the secret to popularity? In fact, it is very simple. The first step is to improve o

So I made it to Harvard. Never thought I'd be able to say that in my life, but it feels good. Thank you, Dr. Counter, thank you to the Harvard Foundation, and thank you, Harvard University for this gr