I don't approve of sunbathing, and it's bad for you.

No one will protect what they don't care about, and no one will care about what they have never experienced.

The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.

Instead of controlling the environment for the benefit of the population, perhaps we should control the population to ensure the survival of our environment

What humans do over the next 50 years will determine the fate of all life on the planet.

Anyone who believes in indefinite growth on a physically finite planet is either mad or an economist

The World is full of wonders, but they become more Wonderful, not less Wonderful when Science looks at them.

The question is, are we happy to suppose that our grandchildren may never be able to see an elephant except in a picture book?

How could I look my grandchildren in the eye and say I knew what was happening to the world and did nothing.

Bringing nature into the classroom can kindle a fascination and passion for the diversity of life on earth and can motivate a sense of responsibility to safeguard it.

I just wish the world was twice as big and half of it was still unexplored.

You slammed my face down on the barbecue grill, now my scars are all healing, but my heart never will.

A church has no right to make anything a condition of membership, which Christ has not made a condition of salvation.

Whatever I cannot do for God's glory must be avoided.

Whatever your dreams are, start taking them very, very seriously.

The method of "postulating" what we want has many advantages; they are the same as the advantages of theft over honest toil.

Alive without breath, As cold as death; Never thirsty, ever drinking, All in mail never clinking.

You can't fool me, comrade. You want to put on a cowboy hat and keep lawless bank robbers in line.'' "No time. I have enough trouble keeping you in line.

Growing up, the most important thing, after taking care of your family and getting a decent job of work, was having a laugh. That was the point to life.

The only problem we've had is the amount of time it's taking people to develop titles.

I heard that Trump said even smelling a book makes him feel tired.