在数学中，真理存在于我们尚未知晓的某处，而我们唯一能希望找到它的方法就是探索。

Sustainability is not just about the environment; it's about creating lasting value for all stakeholders.

解释：在人活动范围内的水就污浊，在野外无人地方的水就清洁。同为一样的水，都是从天边开源，有的混浊有的清洁，这是它们所处环境使它们这样的。

The tears of the world are a constant quantity. For each one who begins to weep, somewhere else another stops. The same is true of the laugh.

The one thing that you have that nobody else has is you. Your voice, your mind, your story, your vision. So write and draw and build and play and dance and live as only you can.

"The stream of thought flows toward survival."

儿童对活动的需要几乎比食物的需要更为强烈。