当一盏灯熄灭时，比它从未亮起时要黑暗得多。

"A good book is a door to another world."

激发对一门学科兴趣的最好方法是使其值得了解，这意味着要使知识可用。

A man, as a general rule, owes very little to what he is born with – a man is what he makes of himself.

过度捕捞就像透支信用卡，终将付出沉重的代价。