Persistence is key in mathematical research; many great results come from looking at the same problem from different angles over and over again.
孩子们只有对自己发明的东西才有真正的理解,每当我们试图太快地教他们一些东西时,我们就阻止了他们自己去重新发明它。
My dad was my best friend and greatest role model. He was an amazing dad, coach, mentor, soldier, husband and friend.