When the see is calm all boats alike

Where is your ancient courage? you were used
To say extremity was the trier of spirits;
That common chances common men could bear;
That when the sea was calm all boats alike
Show'd mastership in floating; fortune's blows,
When most struck home, being gentle wounded, craves
A noble cunning: you were used to load me
With precepts that would make invincible
The heart that conn'd them.