"We will use the tremendous capabilities of this ion propulsion system to climb out of orbit around Vesta, travel for almost another three years through the asteroid belt to dwarf planet Ceres and then go into orbit around Ceres and undertake the same kind of measurements there that we'll be doing at Vesta.

VOA: special.2011.07.27

The most famous climb upward, although we will not actually read these parts for this class, concerns the climb to the divided line, the famous image of the divided line in Book VI, and the ascent to the world of the imperishable forms.

最著名的向上攀升，但我们不会实际,在本课中阅读，这些关于攀升到分界线的段落，著名的分界线景像出现在第，VI，部，上升到,不朽形式的世界。

耶鲁公开课 - 政治哲学导论课程节选

"The first time we visited this rock last fall - there were maybe one or two children out of 15 who knew how to climb up this."

VOA: standard.2010.06.25