History of the Peloponnesian War
Thucydides
Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.
Again, they are bold even beyond their power, and adventurous beyond their judgment, and sanguine in dangers; while your character is to undertake things beneath your power, and not to trust even the sure grounds of your judgement, and to think that you will never escape from your dangers. Moreover, they are unhesitating, in opposition to you who are dilatory;
and fond of going from home, in opposition to you who are most fond of staying at home: for they think that by their absence they may acquire something; whereas you think that by attempting [more] you would do harm to what you have.