A person’s debt is how much he or she owes to others. Deb...[作者空间]

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You don't look good. Is something bothering you?Yes, it's...[作者空间]

Civil wars are fought between citizens of the same countr...[作者空间]

Despite advances in technology, one of the biggest threat...[作者空间]

Kathy usually gets up at 6:30, but this morning she didn'...[作者空间]

00:00 First, a video. Yes, it is a scrambled egg. But as ...[作者空间]

00:00 So in college, I was a government major, which mean...[作者空间]

00:12 As a magician, I try to create images that make peo...[作者空间]

00:04 It's the fifth time I stand on this shore, the Cuba...[作者空间]

00:01 As a boy in Lima, my grandfather told me a legend o...[作者空间]

00:00 So, I started my first job as a computer programmer...[作者空间]

00:00 I want to introduce you to an amazing woman. Her na...[作者空间]

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00:00 So I wanted to tell a story that really obsessed me...[作者空间]

00:01 I'm going to talk about a failure of intuition that...[作者空间]

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00:00 There we were, souls and bodies packed into a Texas...[作者空间]

00:14 Here's a question that matters. 00:16 [Is it ethica...[作者空间]