The wise man doesn't give the right answers, he poses the right questions.

Objects are what matter. Only they carry the evidence that throughout the centuries something really happened among human beings.

Civilization has ceased to be that delicate flower which was preserved and painstakingly cultivated in one or two sheltered areas of a soil rich in wild species ... Mankind has opted for monoculture; it is in the process of creating a mass civilization, as beetroot is grown in the mass. Henceforth, man's daily bill of fare will consist only of this one item.

The world began without man, and it will complete itself without him.

Nor must we forget that in science there are no final truths.

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