The writer's duty is to tell the truth, even when it is uncomfortable.

若心不专一就会一无所获，要想求全就学得不精，一心二用就会学不明白。意在强调专心致志和“术业有专攻”的重要性，只有专注于自己的志业，不好高骛远，才能有所成。

Doublethink means the power of holding two contradictory beliefs in one's mind simultaneously, and accepting both of them.

在冬天的深处，我发现我内心有一个不可战胜的夏天。

"A book is a mirror: if an ape looks into it, an apostle is unlikely to look out."

数学的美在于它能够将复杂的思想简化为优雅的结构。