You cannot hope to build a better world without improving the individuals. To that end, each of us must work for our own improvement and, at the same time, share a general responsibility for all humanity, our particular duty being to aid those to whom we think we can be most useful.

免费的疫苗比昂贵的治疗更有价值，但更难推广。

创新不仅仅是关于技术；它是关于改变我们的思维和运营方式。