It's dangerous to want to get away from earth awhile, to get your feet entirely off the ground.

想要逃离地面一会，让自己的双脚同时离开地面很危险。

耶鲁公开课 - 现代诗歌课程节选

He learned all there was To learn about not launching out too soon And so not carrying the tree away clear to the ground.

直到他再没有用武之地，他学会了,所有的花招：不立刻腾身跳出去,免得一下子把树干扳到了地面。

耶鲁公开课 - 现代诗歌课程节选