知足是天然的财富,奢侈是人为的贫困。
Contentment is natural wealth,luxury is artificial poverty.
道总是无为的,但没有一件事不是它所为。
"The world is full of signs, but we are often too blind to see them."
健康的鱼类意味着健康的人类和健康的地球。
最好的技术是无形的,它只是默默地发挥作用。