无产阶级是普遍的阶级，他们的根本锁链是可以破裂的阶级。
The proletariat is the universal class, the class whose radical chains are capable of bursting asunder.
I'm the reason your daughter's so obsessed.
Every scientist has a responsibility to consider the broader implications of their work.
The strengths approach is about identifying what is right with people and building on those qualities.
生产太多有用的东西会导致太多无用的人。