最大的风险是不冒险。

I don't want to be alone, I want to be left alone.

压制意见表达的特殊罪恶在于它是在剥夺人类，无论是后代还是现存的这一代；那些与这一意见不同的人，比那些持有这一意见的人更多。

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, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.