The scientist is not a person who gives the right answers, he is one who asks the right questions.

Not all poisonous juices are burning or bitter nor is everything which is burning and bitter poisonous.

I am the place in which something has occurred.

I can't help thinking that science would be more appealing if it had no practical use.

Being human signifies, for each one of us, belonging to a class, a society, a country, a continent and a civilization; and for us European earth-dwellers, the adventure played out in the heart of the New World signifies in the first place that it was not our world and that we bear responsibility for the crime of its destruction.

I think that a society cannot live without a certain number of irrational beliefs. They are protected from criticism and analysis because they are irrational.

There is one fact that can be established. The only phenomenon which, always and in all parts of the world, seems to be linked with the appearance of writing