谦逊是伟大领导者的标志。
Humility is the mark of a great leader.
数学的进步不仅仅依靠个人的努力，而是通过几代人的集体工作。
To grow vegetables is to grow hope; every seed planted is a promise to the future.
物理理论的美在于它能够统一看似无关的现象。