"A nation that destroys its soils destroys itself. Forests are the lungs of our land, purifying the air and giving fresh strength to our people."
"The stories we tell about animals say more about us than they do about them."
奥林匹克运动会是四年一度的人类的春天的庆祝活动。
读书人要为子孙营造福祉而不是祈求福祉。严谨家规,崇尚俭朴,教导耕田读书,累积陰德,这就是营造福祉。广积土地房屋,拉拢关系争取利益,买卖功名,这就是求福祉。营造福祉的,平淡而长久;祈求福祉的,浓郁却短暂。
自然知识的改进者绝对拒绝承认权威。对他来说,怀疑主义是最高的责任;盲目信仰是不可饶恕的罪过。