想法是生产中的关键投入，而人是产生想法的关键投入。

Memory is not just personal, it's collective. We remember through others and others remember through us.

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.