The worst blindness is the blindness of those who do not want to see.
The only way to learn mathematics is to do mathematics.
The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
我們實現(xiàn)明天的唯一限制將是我們今天的懷疑。
"The cost of oblivious daydreaming was always this moment of return, the realignment with what had been before and now seemed a little worse."