"The only way to learn mathematics is to do mathematics."

成功不是终点，失败也不是致命的：重要的是继续前进的勇气。

"Every book is a journey, and every page is a step towards discovering the unknown."

The obligation of subjects to the sovereign is understood to last as long, and no longer, than the power lasteth by which he is able to protect them.

99%的时间里，真正关键的时刻就是此刻。

夢は、現実になるためにある。