Sometimes you put walls up not to keep people out,but to see who cares enough to break them down.
The past is a kind of future that has already happened.
流放不是一个地方,而是一种你随身携带的心态。
【译文】不要笑话别人很老,自己有一天也会变老。同邻里相处好,就像捡到一块宝贝一样可贵。只要安分守己做人,一生都不会有烦恼。
Your time is limited, don't waste it living someone else's life. Don't be trapped by dogma, which is living with the results of other people's thinking. Don't let the noise of others' opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition. They somehow already know what you truly want to become.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.