...knowing the secret of happiness to be freedom, and the secret of freedom a brave heart, not idly to stand aside from the enemy's onset.
ThucydidesFor if many ill-conceived plans have succeeded through the still greater lack of judgment of an opponent, many more, apparently well laid, have on the contrary ended in disgrace. The confidence with which we form our schemes is never completely justified in their execution; speculation is carried on in safety, but, when it comes to action, fear causes failure.
ThucydidesIt is the habit of mankind to entrust to careless hope what they long for, and to use sovereign reason to thrust aside what they do not desire
Thucydides