我不怕死，我只是不想在我死的時(shí)候在場。
沒有大膽的猜想，就沒有偉大的發(fā)現(xiàn)。
The past does not belong to us; we belong to it.
2004年9月13日，81歲的楊振寧在清華大學(xué)開始為本科生講授普通物理。他說
To conquer without risk is to triumph without glory.
I see a sweetness in her smile,Blight light shines from her eyes,But life is complete; contentment is mine, Just knowing that... just knowing that she's alive。