The work on IVF was driven by the desire to help infertile couples.
可持续性不仅仅是一个目标，更是一种责任。
"The dead are not dead until they are forgotten."
The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
In the face of climate change, the oil and gas industry must evolve or risk becoming obsolete.