心理现象只能通过它们对行动的后果来理解。
Mental phenomena can only be understood in terms of their consequences for action.
There are no mistakes in art, only unexpected discoveries.
优秀的数学家应该既严谨又富有想象力。
The deepest insights in mathematics often come from the most abstract theories.
The only way to make sense out of change is to plunge into it, move with it, and join the dance.