Certification standards are the compass for responsible forestry.
我们生活中最美好的时刻不是被动的、接受的、放松的时刻……最美好的时刻通常发生在一个人自愿努力完成一项困难而有价值的事情时，身体或精神被拉伸到极限。
我越是研究自然，就越对造物主的工作感到惊奇。
Pressure is a privilege—it means you have a chance to do something great.
病毒学的美妙之处在于病毒通过打破规则来教我们生命的规则。
The spread of liberal democracy and the integration of the world economy have created a situation in which the major powers are no longer willing to go to war with one another.
The value of art is not in its technique, but in its truth.