把这一句，留给此刻的你
I tried reading Hilbert. Only his papers published in mathematical periodicals were available at the time. Anybody who has tried those knows they are very hard reading.
我试着读希尔伯特的作品。当时只有他在数学期刊上发表的论文。任何尝试过的人都知道这些书很难读。
把喜欢的一句，带在身边
做成一张壁纸
16 种意境 · 9:16 竖屏 · 1440 × 2560 高清图片