免费的疫苗比昂贵的治疗更有价值,但更难推广。
Free vaccines are more valuable than expensive treatments, yet harder to promote.
如果我们想养活世界,就必须投资于更智能的畜牧方式。
I don't care what people say about me. I know who I am.
解释:话说得太甜蜜动听,说话者就必定别有用心。
Patience and precision are the unsung heroes of scientific progress.
实现明天的唯一限制将是我们今天的疑虑。