反复练习是儿童的智力体操。

Man's main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.

真正的天堂是我们已经失去的天堂。

Theorems are eternal; their proofs are ephemeral.

The very definition of the real becomes: that of which it is possible to give an equivalent reproduction.

我们都困在语言的网中，但它也是我们唯一的逃脱手段。