When I climb a building, I've been there already, and carefully planned how to start the climb as well as how to do it.

When I climb a building, I've been there already, and carefully planned how to start the climb as well as how to do it.

当我爬上一座建筑时，我已经在那里了，我仔细地计划着如何开始以及如何去做。

-- Alain Robert 罗伯特