I believe in second chances because I've been given one.

It always seems impossible until it's done.

The challenge of our time is to create a sustainable energy future.

I went to the woods because I wanted to live deliberately,I wanted to live deep and suck out all the marrow of life, To put to rout all that was not life, and not when I had come to die, Discover that I had not lived.

安全不是功能，而是基础。