We choose to go to the Moon... 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 we intend to win, and the others, too.
案例丰富，数据详实，论证扎实可信。
老话题新解读，展现了深刻的反思精神。
文章紧扣主题，观点鲜明，展现出深刻的思考维度。