You are never too old to set another goal or to dream a new dream.

The best investments we make are in the skills and safety of our workforce.

译文：世家子弟登上高位，而有才华的人却埋没在低级的官职中。

数学证明的美在于它的优雅以及它以清晰简洁的方式揭示潜在真理的方式。