No. Although the phrase does come from Hamlet, Hamlet does not speak it, as part of a soliloquy or otherwise. It is spoken by Polonius, and it is ironic, since Polonius is totally devious and deceptive and is false to many men, including his son Laertes to whom he speaks these words.
Thine Own Self was created on 1994-02-14.
It is a soliloquy. A dialogue is between two people; soliloquy is more like self-introspection.
In the quotation 'To thine own self be true' thine is used for the word 'your'. It says 'Be true to yourself'.
C. Soliloquy
The quote "To thine own self be true" was written by Shakespeare. This appears in a speech by Polonius in Hamlet. This is NOT in the Bible.
Translating to contemporary English "Be true to yourself."
Summerland - 2004 To Thine Self Be True 1-7 is rated/received certificates of: Argentina:13
Grammar. "Thine" is used before a word beginning with a vowel (like the difference between "a" and "an"). Shakespeare wrote "thine," of course. (Elizabethan grammar was a flexible thing, but not in this case.)
Sons of Anarchy - 2008 To Thine Own Self 5-11 was released on: USA: 20 November 2012
Frasier - 1993 To Thine Old Self Be True 7-20 is rated/received certificates of: Canada:PG (video rating)
90210 - 2008 To Thine Own Self Be True 2-10 is rated/received certificates of: Netherlands:6 USA:TV-14
Someone who talks to themselves may be referred to as "self-talker" or "self-conversationalist." In psychology, this behavior can also be known as "soliloquy" or "self-talk."