我在这个星球上度过了非凡的一生。我用我的头脑和物理学的定律，在宇宙中遨游。我抵达过银河系最深处的所在，我钻进过黑洞，我回到过时间的最初。

       在地球上，我经历过起起伏伏、兴衰荣辱、富贵贫穷、健康病痛。有人赞美我，有人批评我，但从来都没有人忽视过我。我著书立说，功成名就，只因为我对宇宙的理解，丰富了人类的视野。但在我眼里，这宇宙空无一物，除非有我爱之人和爱我之人环绕其中。没有她们，我将不能承受此生之壮丽。

      当千帆过尽，我看到了人类的凯旋。人类，不过自然造物，基本粒子的聚合而已。却有能力去理解：统驭我们的宇宙至理。我真是忍不住与你分享我的热情，我的欢喜，这一场问天问地的求索之旅。

      为世间男女的康健与安逸，为芸芸众生的良机与爱意，奋斗不息。做时间的旅行者，向着未来航行。未来是否繁花似锦，源自我们当下之努力。

      做一个勇敢的人，做一个好奇的人，做一个坚定的人，翻山越岭，事竟成。

      I have led an extraordinary life on this planet, while at the same time travelling across the universe by using my mind and the laws of physics. I have been to the furthest reaches of our galaxy, travelled into a black hole and gone back to the beginning of time.

      On Earth, I have experienced highs and lows, turbulence and peace, success and suffering. I have been rich and poor, I have been able-bodied and disabled. I have been praised and criticised, but never ignored. I have been enormously privileged, through my work, in being able to contribute to our understanding of the universe. But it would be an empty universe indeed if it were not for the people I love, and who love me. Without them, the wonder of it all would be lost on me.

       And at the end of all this, the fact that we humans, who are ourselves mere collections of fundamental particles of nature, have been able to come to an understanding of the laws governing us, and our universe, is a great triumph. I want to share my excitement about these big questions and my enthusiasm about this quest.

       Let us fight for every woman and every man to have the opportunity to live healthy, secure lives, full of opportunity and love. We are all time travellers, journeying together into the future. But let us work together to make that future a place we want to visit.

      Be brave, be curious, be determined, overcome the odds. It can be done.