A hundred times every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving...
In mathematics, the journey is just as important as the destination.
Le génie est comme l'or: il faut le faire sortir de la mine.
穷人并非不理性；他们和任何人一样理性，但他们在非常不同的约束下行动。