All evolutionary biologists know that variation itself is nature's only irreducible essence... I had to place myself amidst the variation.

Orchids were not made by an ideal engineer; they are jury-rigged from a limited set of available components.

I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops.

Science is an integral part of culture. It's not this foreign thing, done by an arcane priesthood. It's one of the glories of the human intellectual tradition.

We cannot win this battle to save species and environments without forging an emotional bond between ourselves and nature as well - for we will not fight to save what we do not love.

Advocates for a single line of progress encounter their greatest stumbling block when they try to find a smooth link between the apparently disparate designs of the invertebrates and vertebrates.

Ordinary speciation remains fully adequate to explain the causes and phenomenology of punctuation.

Nothing is more dangerous than a dogmatic worldview - nothing more constraining, more blinding to innovation, more destructive of openness to novelty.

The center of human nature is rooted in ten thousand ordinary acts of kindness that define our days.

If genius has any common denominator, I would propose breadth of interest and the ability to construct fruitful analogies between fields.

Creationist critics often charge that evolution cannot be tested, and therefore cannot be viewed as a properly scientific subject at all. This claim is rhetorical nonsense.

The failure to read the Holy Bible leads to spiritual depletion.

Happiness is not a destination or an experience. It's a decision.

Before comparing yourself with others, win the battle with yourself. Strive to be better today than yesterday, and better tomorrow than today.

If you're an entrepreneur and you think that the president makes a difference to your business, you should stay at your current job.

The fault finder will find faults even in paradise and thereby miss the joys that recognition of the positives bring.

Without armaments peace cannot be kept; wars are waged not only to repel injustice but also to establish a firm peace.

I love female singer-songwriters!

I try to just make what I want to make or what I would want to see. I try not to think about the audience too much.

Once turn to practice, error and truth will no longer consort together.

Believe it or not, it is not only possible to accomplish more by doing less, it is mandatory. Enter the world of elimination.