In Act IV of Shakespeare’s “Julius Caesar,” Brutus–loyal friend and high-minded assassin–makes an eloquent case for recognizing and embracing opportunity when it comes:
There is a tide in the affairs of men
Which, taken at the flood, leads on to fortune;
Omitted, all the voyage of their life
Is bound in shallows and in miseries.
On such a full sea are we now afloat,
And we must take the current when it serves,
Or lose our ventures.
–“Julius Caesar,” Act IV, Scene iii