Sustainability starts with small steps, but requires big vision.

There is a time for daring,and there is a time for caution, and a wise man understanding which is called for

挑战是伪装的机遇，拥抱它们并变得更强大。

Don't wait until everything is just right. It will never be perfect. There will always be challenges, obstacles and less than perfect conditions. So what. Get started now. With each step you take, you will grow stronger and stronger, more and more skilled, more and more self-confident and more and more successful.