Pain can be a form of knowledge.
痛苦可以是一种知识形式。
认证计划是负责任林业实践的底线，而不是上限。
National unity is the source of strength.
进步的艺术是在变化中保持秩序，在秩序中保持变化。
We are moving from an economy based on the production of goods to one based on the production of information.
债券市场是市场预期的最终衡量标准。