You have to be willing to make mistakes; the big thing is to not make the same mistake over and over again.
A mathematician's work is never truly finished; there is always more to explore.
"El tiempo que uno pasa riendo es tiempo que pasa con los dioses."
The challenges of today are the opportunities of tomorrow—if we approach them with the right mindset.
只要你去尝试,梦想就有可能实现。