Liszt was promiscuous, possibly.
It is impossible to stay out all night on Friday night, drinking and getting high with my friends, when I know I have an 8am piano lesson on Saturday, and a 2-hour music theory or composition lesson in the afternoon.Then there is all the time I needed to practise, rehearse, etc.I attribute my brain not being drug-addled or alcohol-damaged to my love of piano playing, and my determination to do it properly. It certainly wasn't because I would hang around with the 'right' type of people at school!!!