We never cease to stand like curious children before the great mystery into which we were born.

The richness I achieve comes from Nature, the source of my inspiration.

农民是我们经济中唯一以零售价购买一切、以批发价出售一切，并双向支付运费的人。

写作就是呼吸，呼吸就是生活。

The past is what you remember, imagine you remember, convince yourself you remember, or pretend you remember.

在数学中，提出问题的艺术必须比解决问题更有价值。