If you can force your heart and nerve and sinew to serve your turn long after they are gone, and so hold on when there is nothing in you except the will which says to them: 'Hold on!'
Rudyard KiplingA black shadow dropped down into the circle. It was Bagheera the Black Panther, inky black all over, but with the panther markings showing up in certain lights like the pattern of watered silk. Everybody knew Bagheera, and nobody cared to cross his path, for he was as cunning as Tabaqui, as bold as the wild buffalo, and as reckless as the wounded elephant. But he had a voice as soft as wild honey dripping from a tree, and a skin softer than down.
Rudyard Kipling