外交是一门没有永久朋友，只有永久利益的学科。

晏子春秋

后天是你余生的第三天。

The human genome is not just a blueprint—it's a story still being written.

The holographic principle suggests that the information content of a region of space can be thought of as encoded on the boundary of that region, much like a hologram.

Purchase the most recent tourist guidebook to your home town or region. You’ll learn a lot by playing the tourist once a year.