"The truth is rarely pure and never simple."

It is not shame for a man to learn that which he knows not，whatever his age.

There is no shortcut in science, only down-to-earth work.

解释：善念不可轻易丧失，恶念不能肆意滋长。

There’s man all over for you, blaming on his boots that faults of his feet.

在科学中，我们不仅找到答案，还找到更好的问题。

The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.

A book should feel like a friend to a child—comforting, exciting, and full of surprises.