The permanence of certain urban artifacts gives them the quality of monuments.
The first erroneous assumption is that quality means goodness, or luxury, or shininess, or weight. Quality means conformance to requirements.
CRISPR的未来是光明的，我相信它将继续彻底改变医学和农业。
"You can't go back and change the beginning, but you can start where you are and change the ending."
你无法回到过去改变开头，但你可以从现在开始改变结局。
我是一个战士。我相信善良，我相信善良终将战胜邪恶。
交易成功的关键是对市场心理有扎实的理解。
The truth is rarely pure and never simple.