Nothing is so simple that it cannot be misunderstood.
It's easier to seek forgiveness than permission.
There's never time to do it right, but there's always time to fix it.
And another from Henry V - this one's about the responsibility that goes with the pep talk. On the eve of battle King Henry V goes secretly amongst his own soldiers and is challenged by two of them about the morality of going to war:
King Henry: I dare say you love him not so ill to wish him here alone, howsoever you speak this to feel other men痴 minds. Methinks I could not die any where so contented as in the king痴 company, his cause being just and his quarrel honourable.
William: That痴 more than we know.
Bates: Ay, or more than we should seek after; for we know enough if we know we are the king痴 subjects. If his cause be wrong, our obedience to the king wipes the crime of it out of us.
William: But if the cause be not good, the king himself hath a heavy reckoning to make; when all those legs and arms and heads, chopped off in a battle, shall join together at the latter day, and cry all, 糎e died at such a place; some swearing, some crying for a surgeon, some upon their wives left poor behind them, some upon the debts they owe, some upon their children rawly left. I am afeard there are few die well that die in a battle; for how can they charitably dispose of any thing when blood is their argument? Now, if these men do not die well, it will be a black matter for the king that led them to it, whom to disobey were against all proportion of subjection.