It is the duty of the human understanding to understand that there are things which it cannot understand.
The mind is not a static entity, but a dynamic process of continual adjustment.
可持续发展不仅仅是一个流行词，它是负责任的林业的基础。
艺术应该超越国界，成为人类共同的语言。
It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.