可持续性不是一种选择;它是我们对后代的责任。
眼睛同时看两样东西,就会看不明白;耳朵同时听两种声音,就会听不清楚。
Success is going from failure to failure without losing enthusiasm.
最好的扶贫计划是一个能提供好工作的增长型经济。
Hunger and poverty are the root causes of much of the world's unrest and misery.