Act I, Scene 3, Hamlet

"Yet here, Laertes?  Aboard, aboard, for shame!
The wind sits in the shoulder of your sail,
And you are stay'd for.   There, my blessing with thee,
And these few precepts in thy memory
Look thou character.  Give thy thoughts no tongue,
Nor any unproportion'd thought his act;
Be thou familiar, but by no means vulgar;
Those friends thou hast, and their adoption tried,
Grapple them unto thy soul with hoops of steel,
But do not dull they palm with entertainment
of each new-hatch'd unfledg'd comrade; beware
Of entrance to a quarrel, but being in,
Bear 't that the opposed may beware of thee;
Give every man thy ear, but reserve thy judgement;
Costly thy habit as thy purse can buy,
For apparel oft proclaims the man,
And they in France of the best rank and station
Are of a most select and generous chief in that.
Neither a borrower nor a lender be,
For loan oft loses both itself and friend,
And borroing dulleth the edge of husbandry;
This above all, to thine own self be true,
And it must follow, as the night the day,
Thou canst not then be false to any man.
Farewell; my blessings season this in thee!"