"Coronaviruses include a group of RNA viruses of medical and veterinary importance, all of which are characterized by spherical, enveloped virus particles with prominent surface projections, resembling the corona of the sun. They infect various animal species, causing respiratory, gastrointestinal, cardiovascular, and neurological diseases. In humans, coronaviruses have been associated with common colds, diarrhea, and possibly multiple sclerosis. The prototypical coronaviruses include avian infectious bronchitis virus (!BV), mouse hepatitis virus (MHV), porcine transmissible gastroenteritis virus (TGEV), bovine coronavirus (BCV), human coronavirus (HCV), feline infectious peritonitis virus (FIPV), rat sialodacryoadenitis virus (SDAV), turkey coronavirus (TCV), rabbit coronavirus (RCV), and several viruses of other animal species."

"One scientific discovery is a gift from the accumulated work of hundreds of researchers. Collaboration is crucial because viruses are smarter than researchers."

"Hepatitis delta virus (HDV) contains a circular, viroid-like RNA genome, the only animal viral RNA of its kind. It possesses a ribozyme activity, which can autocatalytically cleave and ligate itself. The ribozyme has a unique structural requirement different from other known ribozymes."

"A new drug takes some 10 to 20 years and around US$1 billion to US$2 billion to develop."

"錦濤先生，作爲一個臺灣人，我實在不在乎團團和圓圓來不來臺北，雖然熊貓可愛得令人融化。"

"Working in the government nowadays, you can only get things done if you have the determination to go against the prevailing trend."

"If one day I have a stroke, then that will tell me that being ROC Culture Minister is not worth it for me. As long as I am still in this position, I will definitely do my best until one day when I decide that it is not worth it anymore."

"民主是什麼？民主就是發表了任何意見不怕有人秋後算賬；民主就是權利被侵犯的時候可以理直氣壯地討回，不管你是什麼階級什麼身份；民主就是不必效忠任何黨，不必討好任何人..."