The organizer of this year's Toronto Biennial, Hopkins has written that art "allows us to hear in moments of silence, to open our ears rather than to close them."
The signees say they are concerned about "an increasing number of cases of violence targeting minorities and underprivileged members of society in Greece."
Following a string of appearances in major international shows, the artist currently has solo exhibitions at the Museum Tinguely in Basel and MoMA PS1 in New York.