完形填空

Yesterday evening I was watching the evening news on television．The news was about a prize for a scientific 　　1　　 though I forgot what it was．The announcer, whose name was Ralph Story, said something that caught my 　　2　　．“All great discoveries made by young scientists, in their twenties…” Being a little over thirty myself, I wanted to 　　3　　 with him．Nobody wants to think that he is past the age of making any discovery．The next day I 　　4　　 to be in the public library and spent several hours looking up the　　5　　 of famous people and their discoveries．Ralph was right．First I looked at some of the 　　6　　 discoveries．One of the earliest discoveries, the famous experiment that proved that bodies of different 　　7　　 fall at the same speed, was made by Galileo when he was 26．Madam Curie started her research that 　　8　　 to Nobel Prize when she was 28．Einstein was 26 when he published his world-changing theory of relativity．Well, 　　9　　 of that．Yet I 　　10　　 if those “best years” were true in other fields．Then how about the field of 　　11　　? Surely it needs the wisdom of age to make a good leader．Perhaps it 　　12　　, but look when these people started their career．Winston Churchill was elected to the House of Commons at the age of 26．Abraham Lincoln 　　13　　 the life of a country lawyer and was elected to the government．At what 　　14　　? Twenty-six．But 　　15　　 don’t best years come after thirty? After thirty, I 　　16　　, most people do not want to take risk or try 　　17　　 ways．Then I thought of people like Shakespeare and Picasso．The former was 　　18　　 wonderful works at the ripe age of fifty, while the latter was 　　19　　 trying new ways of painting when he was 90!Perhaps there is still 　　20　　 for me．