实现明天理想的唯一障碍是今天的疑虑。

未经反思的人生是半生，而传记就是那面镜子。

Leaders must have the courage to make tough decisions today for a better tomorrow.

质量从来不是偶然的；它始终是智慧努力的结果。

We must build a world in which there shall be no economic domination, no exploitation, no unemployment, and no war.

我想在音乐界留下印记。

Never stop learning—the moment you think you know everything is the moment you start falling behind.

因此，生物生存的普遍斗争不是为了原材料或能量，而是为了熵，这种熵是通过能量从炽热的太阳转移到寒冷的地球而获得的。