The beauty of chemistry lies in its ability to explain the unseen.
化學(xué)之美在于它能解釋看不見的事物。
希望是黑暗中的一束光。
"In every word I write, I seek to capture the fleeting moments of life, to hold them still for a moment longer."
It is not from the benevolence of the butcher， the brewer， or the baker that we expect our dinner， but from their regard to their own interest.