Food security begins with empowering those who grow our food.
一个好计划的最大敌人是完美计划的梦想。
Well, the first rule is that you can’t really know anything if you just remember isolated facts and try and bang ’em back. If the facts don’t hang together on a latticework of theory, you don’t have them in a usable form.
试管婴儿的研究是出于帮助不孕夫妇的愿望。