" to thine own self be true " ,or , "to thine ownself be true "?

Question

which is the correct way ? thanks :)

Answer 1

to thine own self be true

Answer 2

It's from Shakespeare's Hamlet, Act I. The character Polonius is instructing his son Laertes on how to get on in life. Here's the whole thing:

"This above all: to thine own self be true, And it must follow, as the night the day, Thou cans't not be false to any man."

Answer 3

to thine own self be true--think that was Ralph Waldo Emerson, but I didn't look it up.