He said science was going to discover the basic secret of life some day,' the bartender put in. He scratched his head and frowned. 'Didn't I read in the paper the other day where they'd finally found out what it was?' 'I missed that,' I murmured. ' I saw that,' said Sandra. 'About two days ago.' 'That's right,' said the bartender. 'What is the secret of life?' I asked. 'I forget,' said Sandra. 'Protein,' the bartender declared. 'They found out something about protein.' 'Yeah,' said Sandra, 'that's it.