Chinese proverb

From BBC iPlayer: ‘The Chinese are famous for their proverbs, or yànyŭ: words of wisdom gathered from literature or uttered by famous philosophers over the centuries. And, although ancient in some cases, many of these proverbs still provide valuable guidance in the modern age.’

‘The best time to plant a tree was twenty years ago. The second best time is now.’

Meaning: ‘Don’t put things off. If you want success and growth in the future, the best time to act is now. And read in a literal sense, this proverb has added poignancy. We need to act today to protect our planet from the effects of pollution, before it’s too late.’