艾滋病就是一个例子。
[00:04.37]The broad goal, of course, is to end the disease.
毫无疑问，总的目标是消灭这种疾病。
[00:09.01]The highest-leverage approach is prevention.
最高效的方法是预防。
[00:12.30]The ideal technology would be a vaccine that gives lifetime immunity with a single dose.
最理想的技术是一种疫苗，只要注射一次，就可以终生免疫。
[00:20.17]So governments, drug companies, and foundations are funding vaccine research.
所以，政府、制药公司、基金会在资助疫苗研究。
[00:26.55]But their work is likely to take more than a decade,
但是，这种研究工作很可能花费十几年时间。
[00:30.35]so in the meantime, we have to work with what we have in hand-
因此，与此同时，我们必须使用现有技术——
[00:34.37]and the best prevention approach we have now is getting people to avoid risky behavior.
目前最有效的预防方法就是设法让人们避免那些危险的行为。
[00:40.35]Pursuing that goal starts the four-step cycle again.
要实现这个目标，又可以采用四步循环。
[00:45.00]This is the pattern.
这是一种模式。
[00:46.59]The crucial thing is to never stop thinking and working-
关键是永远不要停止思考和行动——
[00:52.24]and never do what we did with malaria and tuberculosis in the 20th century-
我们千万不能再犯上个世纪在疟疾和肺结核上犯过的错误——
[00:59.18]which is to surrender to complexity and quit.
那时我们因为它们太复杂而放弃了采取行动。
[01:04.11]The final step-after seeing the problem and finding an approach is to measure the impact of the work
在发现问题和找到解决方法之后，就该进行最后一步——评估工作结果，
[01:12.32]and share tha successes and failures so that others can learn from the efforts.
将你的成功经验或者失败经验同其他人分享，这样他们就可以从你的努力中有所收获。
[01:19.46]You have to have the statistics, of course.
当然，你必须有一些统计数字。
[01:22.54]You have to be able to show, for example, that a program is vaccinating millions more children.
你必须让他人知道，例如，你的项目为几百万儿童接种了疫苗。
[01:29.31]You have to be able to show, for example, a decline in the number of children dying from these diseases.
你也必须让他人知道，儿童死亡人数下降了多少。
[01:36.05]This is essential not just to improve the program,
这些都是很关键的，不仅有利于改进项目，
[01:39.10]but also to help draw more investment from business and government.
也有利于从商界和政府得到更多的帮助。
