Every chemical compound must have a definite composition, which can be expressed by the symbols of its elements.
每一種化合物都必須有確定的組成，這可以用其元素的符號(hào)來(lái)表示。
"The power of a story is in its ability to connect us."
Science is a journey, not a destination.
當(dāng)我們?cè)跊](méi)有危險(xiǎn)的情況下征服時(shí)，我們的勝利就沒(méi)有榮耀。
每一顆播種的種子都是對(duì)未來(lái)的承諾。