我是行尸走肉，但我只是一个说话的脑袋，一个漂浮的僵尸，但我有一个地下兄弟。

The documenta must always be a risk, never a routine.

写作就是面对记忆的幽灵。

All human knowledge is from experience.

The mathematician's patterns, like the painter's or the poet's, must be beautiful; the ideas, like the colors or the words, must fit together in a harmonious way.