You can't go back and change the beginning, but you can start where you are and change the ending.

The best way to create interest in a subject is to render it worth knowing, which means to make the knowledge usable.

Sustainability isn't a destination—it's a journey.

景物依旧，人事已非，一切事情都完了，想要说话，眼泪却先流下来

夏天的飞鸟，飞到我窗前唱歌，又飞去了。秋天的黄叶，他们没有什麽可唱的，只是叹息一声，飞落在那里。

The real voyage of discovery consists not in seeking new landscapes, but in having new eyes.