制药行业必须在利润与使命之间取得平衡——我们的使命是治愈。
The pharmaceutical industry must balance profit with purpose—our mission is to heal.
建筑是一种挑战，是对自我的挑战。
She was my most special friend. My only friend.
The mathematician's best work is art, a high perfect art, as daring as the most secret dreams of imagination, clear and limpid.
The mind once enlightened cannot again become dark.
The world is built on chemistry, and we are just beginning to see how.