求知若饥，虚心若愚。
Laugh, and the world laughs with you; weep, and you weep alone.
最好的肥料是农民的影子。
大自然的铁律是：有得必有失 如果你想让蚂蚁来，你就在地上放糖。
The leather industry has a rich history, but its future depends on innovation and ethical practices.
Natural selection has shaped our minds as well as our bodies.
The more one forgets himself—by giving himself to a cause to serve or another person to love—the more human he is.