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

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

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

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

I didn't know silence could be that loud.

Everything Dies. That is the law of life-the bitter unchangeable law

A good friend is my nearest relation.

The first step towards knowledge is to know that we are ignorant.

If music wakes you up, makes you think, heals you...then, I guess the music is working.

I want to be one of the top guys in the back end and make sure I keep our team in line and doing the right things in front of me.

The devil can only destroy those who are already on their way to damnation.

Science can prove nothing about God, because God lies outside its province.

You haven't done the will of God when you have done it miserably.

The spiritual journey is not about acquiring something outside yourself, rather, you are penetrating deep layers and veils to return to the deepest truth of your own being.