All art of the past must be destroyed.

It is not enough to deface the Mona Lisa because that does not kill the Mona Lisa. All art of the past must be destroyed.

I suggested that it was not enough to add a moustache to the Mona Lisa: it should simply be destroyed.

For me, curiosity is life. If you are not curious, you are in your coffin.

More and more I find that in order to create effectively one has to consider delirium and, yes, organize it.

Why compose works that have to be re-created every time they are performed? Because definitive, once-and-for-all developments seem no longer appropriate to musical thought as it is today, or to the actual state that we have reached in the evolution of musical technique, which is increasingly concerned with the investigation of a relative world, a permanent 'discovering' rather like the state of 'permanent revolution'.

Creation exists only in the unforeseen made necessary.