Once we realize that imperfect understanding is the human condition, there is no shame in being wrong, only in failing to correct our mistakes.

I am a man of my word.

To build is to take a stand in the world.

You know — one loves the sunset， when one is so sad.

So that morning in 1962 I told myself: Let everyone else call your idea crazy . . . just keep going. Don’t stop. Don’t even think about stopping until you get there, and don’t give much thought to where “there” is. Whatever comes, just don’t stop.