The dead are not silent. They are merely waiting to be heard.

If everything was perfect, you would never learn and you would never grow.

译文：既然人知道羞耻和可恶，那么就会萌生善心。

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。