A series of metal discs cast into the Circular Quay promenade hold ruminations from prominent Australian writers (and the odd literary visitor). The likes of Mark Twain, Germaine Greer, Peter Carey, Umberto Eco and Clive James wax lyrical on subjects ranging from indigenous rights to the paradoxical nature of glass. Genres vary from eloquent poems addressing the human condition to a ditty about a meat pie by Barry Humphries.