I'll never be able to fill my father's or grandfather's shoes, but hopefully I can stand on their shoulders and reach farther.

Young people have, truly, the potential to change the world. Not when they get older - today.

I believe that the only true agents of change on a large scale, in this country or anywhere, are young people.

I've seen a lot of doom and gloom and depressing things, and it's [the] youth that give me hope.

One of my big pet peeves is single-use plastic bags. I think it's one of the stupidest ideas in the world.

My father's plan was, we were going to grow up and travel the world.

I travel all over the country speaking to young people, and I am always amazed at how engaged in environmental conservation they are.

Fossil fuels and mining is a short-term gambit. If we develop those resources at the expense of the environmental gold mine that is the Great Barrier Reef, we will all lose in the long run.

That's why we seize the moment try to freeze it and own it, squeeze it and hold it.

But is there really such a thing as nothing, as nothingness? I don't now. I know we're still here, who knows for how long, ablaze with our care, its ongoing song.

How wonderful it is that we can start doing good at this very moment.

My natural tendency is to complicate everything--and then to spray words and ideas onto everything afterwards. I've had to develop the habit of keeping things simple.

Who doesn't like dolphins? They're like puppies.

Give your dog something to do before you share food, water, toys or affection. This way the dog earns his treat. For example, have him or her perform the "sit" or "down" command.

Death is not the problem; waiting around for it is.

Hopes have precarious life. They are oft blighted, withered, snapped sheer off In vigorous growth and turned to rottenness.

Sweets, you couldn't ignore me if you tried.

I don't like that [scaring] feeling and I watch the news every day because of it. It's going to be hard to fix all of these problems that seem absolutely unfixable to me.