Othello — I. 1
Opportunity
Who seeks, and will not take when offered,
Shall never find it more.
Antony and Cleopatra — II. 7
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:
And we must take the current when it serves,
Or lose our ventures.