Erdös published more than 1,500 papers and did mathematics 19 hours a day, even at 83 – “The 1st sign of senility is when a man forgets his theorems. The 2ns sign is when he forgets to zip up. The 3rd sign is when he forgets to zip down”
Erdös published more than 1,500 papers and did mathematics 19 hours a day, even at 83 – “The 1st sign of senility is when a man forgets his theorems. The 2ns sign is when he forgets to zip up. The 3rd sign is when he forgets to zip down”