疫苗的安全性和有效性是其研发中最重要的标准。
贫困和无知可能逐渐消失的希望,很大程度上源于十九世纪工人阶级的稳步进步。
Don't let your past dictate who you are, but let it be part of who you become.
You have to stay true to yourself and your art.
翻译:聪明睿智,在于人的修养;默默地成就事业,不必多言就能取信于人,在于人的品德。