The wisdom of hindsight, so useful to historians and indeed to authors of memoirs, is sadly denied to practising politicians.
后见之明对历史学家乃至回忆录作者非常有用，但遗憾的是，实践中的政治家却无法拥有。
The most advanced technology is worthless if farmers can't use it effectively.
不能让成功冲昏头脑，也不能让失败击垮内心。
我看到了，我忘记了；我听到了，我记住了；我做过了，我理解了。
