失去的痛苦是我们为爱的喜悦所付出的代价。
The pain of loss is the price we pay for the joy of love.
全人类...都是平等和独立的,没有人应该侵犯他人的生命、健康、自由或财产。
"The only way to do great work is to love what you do."
The most exciting aspect of chemistry is the ability to create new molecules that have never existed before.