数学的进步不仅仅依靠个人的努力，而是通过几代人的集体工作。

I've learned that it's okay to be vulnerable.

造纸行业的未来在于平衡传统与尖端技术。

每一本书都是一次旅程，而每一次旅程都是一本书。

Truth is like a blanket that always leaves your feet cold. You push it, stretch it, it'll never be enough. You kick at it, beat it, it'll never cover any of us. From the moment we enter crying to the moment we leave dying, it will just cover your face as you wail and cry and scream。