每一个挑战都是学习和成长的机会。

Mathematics is the most beautiful and most powerful creation of the human spirit.

翻译：指出世间万物皆有可能被人类利用，但工艺的精巧和细微之处仍需不断追求。

I have suffered and despaired and known death and I am glad that I am in this great world.

教育是富有时的饰品，穷乏时的避难所。