The beginning is always today.

可持续发展不仅仅是保护树木；它关乎确保自然和人类共同繁荣的未来。

农业的效率不仅仅是产量的问题；它关乎资源管理。

The challenge of our time is to build an economy that works for everyone, not just the privileged few.

It seems to me that if you or I must choose between two courses of thought or action, we should remember our dying and try so to live that our death brings no pleasure to the world.