True leadership means making tough decisions today that will benefit future generations.

"The only way to do great work is to love what you do."

All happiness depends on courage and work.

 释义：身体没有受到饥饿和寒冷的痛苦，这是上天不曾亏待我；若是我的学问无所进步，我有何颜面去面对上天呢?

The only limit to our understanding of the universe is our imagination.

我总是努力比昨天的自己更好。