Impossible is nothing. Autore: Muhammad Ali Copy Quote More from Muhammad Ali “I am the greatest, I said that even before I knew I was.” “I Ain't Got No Quarrel With The VietCong...No VietCong Ever Called Me Nigger.” “I try not to speak about all the charities and people I help, because I believe…” “Others may know pleasure, but pleasure is not happiness. It has no more importa…”