Ted Danson

If you take one rivet out of an airplane, it will be all right, it'll keep flying. You take another rivet out of the airplane and it still flies. So what the heck, let's take more rivets out of the airplane, and sooner or later, the airplane drops from the sky.

In 1967, the world health community launched a global effort to eradicate smallpox. It took a coordinated, worldwide effort, required the commitment of every government, and cost $130 million dollars. By 1977, smallpox had disappeared.

When you get up into the crown of a redwood tree, you lose sight of the ground entirely. You also lose sight of the sky. And you're in a lost world. You're in an undiscovered, unexplored ecosystem, somewhere between Heaven and Earth, filled with forms of life, not all of which have been given names by scientists yet.