Mathematics is a living subject, constantly evolving and growing.
人类心智不仅是现实的被动记录者,更是现实的主动构建者。
幸福就像一只蝴蝶:你越是想抓住它,它就越飞走。但如果你停止追逐,它可能会落在你身上。
我比昨天更坚强了
She was my most special friend. My only friend.