对自然界的理解及其内涵不仅是巨大好奇心的来源，也是巨大成就感的来源。
An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment.
If you are under the impression you have already perfected yourself， you will never rise to the heights you are no doubt capable of.
儿童不是缩小的成人，而是有其自身发展规律的个体。
A liberdade é como o ar que respiramos; sem ela, sufocamos.
可持续性不是一种趋势，而是我们共同的责任。