The most difficult thing is to be simple.
Mathematics is not a spectator sport—you have to engage with it to appreciate its beauty.
正是在你做出決定的時(shí)刻,你的命運(yùn)被塑造。
我相信兒童書籍應(yīng)該是美麗的物品,值得珍藏和反復(fù)閱讀。
生命太短暫,不能不追逐你的夢想。