Some people say that self-confidence is the most imp
Ladies and gentlemen, I beleive that self-confidence is the most imp
Great confident man can be seen everywhere in every generation. 500 years ago, Christopher Columbus was self-confident when he set sail on a new journey, changed the course of history and shaped the character of the new world. 200 years ago, two Americans are self-confident when they left Saint Louis to explore the new lands acquired by the Louisiana Purchase. They made that journey in the spirit of self-confidence, to find the potential of vast new territories and to chart a new way for the others to follow. （举证过程靠大量的事例，）
Inspired by all that has come before and guided by clear objectives, today, we are self-confident when we set a new course on our space expolration program. We will build new ships to carry men forward into the universe, to gain our foothold on the moon, and to prepare for the new journey to the world beyond our own. （对比，反复举证过程）
But ladies and gentlemen, self-confidence alone is not enough. Thus, I believe that hardworking is another fact to success.
If Hugh Miller, after toling all day in a quarry, had devoted his evenings in rest and recreation, he would never become a famous geologist. The celebrated mathematician, Edmund Stone, would never have published a mathematical dictionary, nor will he find the key to science or mathematics if he had given his spare moments to idleness. Had the little Scotch lad, Furgeson, allow his brain to go to sleep when he tended sheep on the hillside, instead of calculating the positions of the stars by a string of beads, he would never have become a famous astronomer. （举证过程中注意修辞，排比句、假设句、反义疑问句等都能增加你的说服力）
Ladies and gentlemen, I prepared hard before this competition, and standing here now, I am self-confident. To me, the journey of success never ends, and there is no final victory to claim. I see a great day coming, and I'm eagar for the work ahead. Thank you. （做到首尾呼应）