Today, we celebrate the fact that this historic document has survived a turbulent five decades, which have seen some of the most extraordinary developments in the evolution of human society. These include the collapse of the colonial system, the passing of a bipolar world, breath taking advances in science and technology and the entrenchment of the complex process of globalisation.

He who is not content to look, like a savage, at the phenomena of nature as disconnected, cannot any longer believe that man is the work of a separate act of creation ... Man is the co-descendant with other mammals of a common progenitor.

Though nature grants vast periods of time for the work of natural selection, she does not grant an indefinite period; for as all organic beings are striving, it may be said, to seize on each place in the economy of nature, if any one species does not become modified and improved in a corresponding degree with its competitors, it will soon be exterminated.

Worms have played a more important part in the history of the world than humans would at first suppose.

Although human ingenuity may devise various inventions which, by the help of various instruments, answer to one and the same purpose, yet will it never discover any inventions more beautiful, more simple or more practical than those of nature, because in her inventions there is nothing lacking and nothing superfluous; and she makes use of no counterpoise when she constructs the limbs of animals in such a way as to correspond to the motion of their bodies, but she puts into them the soul of the body.

Time after time, history ran over the luddites and romanticists, those who sought to restore the old and delay the new. And every time, history did it with faster, more reliable and more advanced vehicles.