出自汉·桓宽《盐铁论·执务》。土地堆积起来，便成为山峦。水储存起来便会形成江海，品行积累起来便会成为高尚的人。

Words are the bridge between the inner and outer world.

Sustainability is not just about planting trees; it's about planting ideas that grow into actions.

释义：只有连根拔除杂草，才能确保它不会再发芽生长。如果砍草时不除去根部，到了春天杂草还会再度生长。