最重要的是永远不要停止提问。
All that we see or seem is but a dream within a dream.
可持续性不是选择,而是我们对后代的责任。
This was a very short visit, but it plunged the little prince into deep dejection.
Science thrives on doubt and skepticism.
The greatest proof of our intellect is our ability to perceive our own limitations.