The past is a candle at great distance: too close to let you quit, too far to comfort you.
过去是远处的一支蜡烛：近得让你无法放弃，远得无法给你安慰。
能源的未来在于发展与可持续性之间的平衡。
The most successful leaders are those who see leadership as a responsibility, not a privilege.
I never guess. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.
结构应该生长，而不是被强加。
所以，国家的钱财不足以来应付饥荒，救济孤儿寡妇，这样，国家就贫困，百姓就难于治理。
在为增加粮食生产的机构和为控制人口的机构联合起来共同努力之前，抗击饥饿的斗争不可能取得永久性进展。