He had come a long way to this blue lawn, and his dream must have seemed so close that he could hardly fail to grasp it.
I'm not superman, so I can't say anything big like I'll protect everyone on earth. I'm not a modest guy who will say it's enough if I can protect as many people as my two hands can handle either. I want to protect a mountain-load of people.
We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard.