领导力意味着今天做出艰难的决定，明天让所有人受益。
Leadership means making tough decisions today that will benefit everyone tomorrow.
I find I'm so excited. I can barely sit still or hold a thought in my head. I think it the excitement only a free man can feel, a free man at the start of a long journey whose conclusion is uncertain. I hope I can make it across the border.I hope the Pacific is as blue as it has been in my dreams. I hope to see my friend, and shake his hand. I hope.
Escribir es un acto de libertad, de expresar lo inexpresable.
Success comes when preparation meets opportunity.
You are never too old to set another goal or to dream a new dream.
你必须梦想，你必须有一个愿景，你必须为自己设定一个甚至可能让你有点害怕的目标，因为有时候那似乎远远超出你的能力范围。
数学的美在于它能够以最简单的术语描述宇宙。