Comparison of Nicias and Crassus (3.2)

I do not, indeed, commend Crassus, in the war with Spartacus, for pressing forward into action with greater speed than safety, although it was natural for a man of his ambition to fear that Pompey would come and rob him of his glory, just as Mummius had robbed Metellus of Corinth; but the conduct of Nicias was altogether strange and terrible. For it was not while it afforded him good hopes of success, or even of ease, that he renounced his ambition to hold the command in favour of his enemy, but when he saw that his generalship involved him in great peril, then he was content to betray the common good at the price of his own safety.