It is a great honour to be invited to propose the toast of this famous Society; doubly so when, as in my case, one is not a scientist but has been trained in the humanities. Historians, of course, have always found the origins of the Royal Society exceptionally interesting, one of those felicitous cases of a combination of Oxford and London which seems in this case to have prospered from the beginning. I say this not simply because it makes you the oldest scientific society still in existence but because the moment at which the Royal Society was born was indeed the happiest it could possibly have been. If the Society had been formed 100 years before then, Mr President, you would have had the pleasure of presiding at the 413th anniversary of the Society. Nonetheless, I think it would have been a loss; 1660 was exactly the right moment, because it meant that the Society was born just when the wave was rising of the scientific revolution which gave birth to modern science. So the Society was able, within eleven years after it had been founded, to elect Isaac Newton to the Fellowship at the age of 28, and later to have him as its President for twenty-four years. It is, in fact, a society, not only 300 years old but, more to the point, coterminous with the history of modern science. Instead of having to break away from an earlier history, which would have been the case if it had been founded 100 or 200 years earlier, right from the beginning the objectives of the Society, the advancement of knowledge by observation and experiment, were easily recognizable by any scientist since as acceptable to him.