现代社会已经迷失了方向，被物质主义和肤浅所吞噬。
可持续发展不仅仅是保护树木；它关乎确保自然和人类共同繁荣的未来。
The battle to feed all of humanity is over. The battle to feed all of humanity in the future has just begun.
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
贫穷的循环始于对希望的放弃。