He knows not the value of a day of pleasure who has not seen adversity.

An optimist stays up until midnight to see the new year in. A pessimist stays up to make sure the old year leaves.

We hope that, when the insects take over the world, they will remember with gratitude how we took them along on all our picnics.

The eagle may soar; beavers build dams.

The US has not imposed democracy in Yemen, its people have.

The whale is endangered, while the ant continues to do just fine.

Even pearls are dark before the whiteness of his teeth.

Money won't buy happiness, but it will pay the salaries of a large research staff to study the problem.

Youth is when you're allowed to stay up late on New Year's Eve. Middle age is when you're forced to.

Now that women are jockeys, baseball umpires, atomic scientists, and business executives, maybe someday they can master parallel parking.

The government is shutting down the coal industry, they say it's cheaper to draw nuclear power off the French grid and cheaper to buy coal from Colombia.

It requires wisdom to understand wisdom: the music is nothing if the audience is deaf.

Every blade of grass was carved from emerald, every drip of water turned to diamond.

The directors you trust the most are the ones, when you ask them a question, they've got the guts to say, 'I don't know.'

There are only three things we 'have to' do in this world we have to be born, we have to die, and we have to live until we die. Everything else is a choice!

I love swimming in rivers, and well remember once jumping in at Chiswick.

This seems highly likely, especially as it has been shown that in several systems mutations affecting the same amino acid are extremely near together on the genetic map.

A close family member once offered his opinion that I exhibit the phone manners of a goat, then promptly withdrew the charge - out of fairness to goats.

Heroes are a mischievous race.

It's so cool for me to do what I love to do for a living and meet people from all over the world.

There is a place of imagination, and it is entirely real.