[Audubon's works are] the most splendid monuments which art has erected in honor of ornithology.

The observer listens to nature: the experimenter questions and forces her to reveal herself.

Nurse, it was I who discovered that leeches have red blood.[]On his deathbed when the nurse came to apply leeches

Hence the same instant which killed the animals froze the country where they lived. This event was sudden, instantaneous, without any gradual development.

Secondly, the nature of the revolutions which have altered the surface of the earth must have had a more decisive effect on the terrestrial quadrupeds than on the marine animals.

My object will be, first, to show by what connections the history of the fossil bones of land animals is linked to the theory of the earth and why they have a particular importance in this respect.

Thus it cannot be denied that the masses which today form our highest mountains were originally in a liquid state; for a long time they were covered by waters which did not sustain any life.

It is evident that one cannot say anything demonstrable about the problem before having resolved these preliminary questions, and yet we hardly possess the necessary information to solve some of them

If I didn’t have a job, I might have stayed in bed until I rotted.

The starting point of all achievement is desire.

You cannot bring democracy to a country by attacking it.

When we dance, the journey itself is the point, as when we play music the playing itself is the point.

I never dreamed the sea so deep, The earth so dark; so long my sleep, I have become another child. I wake to see the world go wild.

Poetry is a fresh morning spider-web telling a story of moonlit hours of weaving and waiting during a night.

Part of obedience to the Golden Rule is knowing how to respond once you've behaved in an unloving way.

If something is going to be better, it is new, and if it's new you are confronting problems and challenges you don't have references for.

The problem right now is jobs. The problem right now is the economy and economic growth.