This proverb is about how a good education program takes a long time to develop. It also makes me think about the methods I am using to learning Mandarin which are quite disseperate and not like a traditional syllabus.
Also interestingly, our education programs tend to be very un-environmentally friendly using a lot of paper and resources to sustain it.
shí nián shù mù, bǎi nián shù rén
It takes ten years to nurture a tree, but a hundred years to train a man