成功在于坚持和永不放弃。

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

【释义】审视自己就可以推知他人，考察现在就可以了解过去。

逝者从未远离我们，他们在我们心中，在我们脑海里，永远如此。