"To Thine Own Self Be True" Is Shakespeare, and the Speaker Is a Fool

Where it comes from

"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."

It is Polonius, in Hamlet, Act 1 Scene 3, sending his son Laertes off to France with a bundle of advice. It gets quoted at graduations and printed on cards, and a fair number of people have looked for it in a concordance.

It is not in the Bible. It is also, in context, not presented as wisdom.

Who Polonius is

This is the part that usually surprises people.

Shakespeare does not write Polonius as a sage. He is a court functionary who talks constantly and says little, whose defining trait is a fondness for his own advice. The speech to Laertes is a string of proverbs delivered at a young man who is trying to leave, and its comic quality is that Polonius has just told his son to hold his tongue and then talks for twenty lines.

He goes on to spy on his own daughter's relationship, use her as bait to eavesdrop on Hamlet, and get himself stabbed hiding behind a curtain. Hamlet's assessment of him is not gentle.

So the line is not the play's thesis. It is a stock aphorism from a character whose habit is dispensing stock aphorisms, in a play that is substantially about how badly people know themselves.

And Polonius may not even mean what modern readers hear. In Elizabethan usage "be true to yourself" carried a strong sense of looking after your own interests, closer to prudent self-management than to authentic self-expression. The father is likely telling his son not to be taken advantage of abroad.

What Scripture says about the self as a guide

The modern reading, that your inner sense of yourself is the most reliable thing you have, is close to the opposite of Scripture's position.

The heart is deceitful above all things, and desperately sick; who can understand it? (Jeremiah 17:9)

That is not a claim that people are worthless. It is a claim about self-knowledge specifically: the instrument you would use to assess yourself is the instrument in question.

Trust in the LORD with all your heart, and do not lean on your own understanding. In all your ways acknowledge him, and he will make straight your paths. (Proverbs 3:5-6)

There is a way that seems right to a man, but its end is the way to death. (Proverbs 14:12)

Both proverbs are about the gap between how a course of action feels from the inside and where it actually goes. That gap is the whole subject.

Paul on his own conscience

Paul gives the most precise statement of the problem, and it is more careful than either extreme:

But with me it is a very small thing that I should be judged by you or by any human court. In fact, I do not even judge myself. For I am not aware of anything against myself, but I am not thereby acquitted. It is the Lord who judges me. (1 Corinthians 4:3-4)

Three moves in four lines. Other people's assessment of him is not final. His own assessment of himself is not final either, and he says so while reporting a clear conscience. The verdict belongs to God.

That is the balance. Paul does not say his conscience is worthless; he consults it. He says it is not the court of final appeal, because a clear conscience and actual innocence are two different things.

What replaces the self

If the self is not a reliable compass, Scripture is specific about what is.

God's word, which functions as an external standard precisely because it does not originate with you: "discerning the thoughts and intentions of the heart" (Hebrews 4:12). The psalmist asks for it directly rather than relying on introspection alone: "Search me, O God, and know my heart" (Psalm 139:23).

And other people. This is the practical half and it is easy to skip. "In an abundance of counsellors there is safety" (Proverbs 11:14). Faithful are the wounds of a friend (Proverbs 27:6). The reason the church is structured with correction, teaching and mutual accountability is that individuals cannot see themselves clearly and need people who will say so.

What is true in the phrase

There is something worth keeping, which is why the line has legs.

Scripture has no patience for hypocrisy or performance. "Let your yes be yes and your no be no" (Matthew 5:37). The Pharisees' central failure is a mismatch between the outside and the inside. Integrity, in the sense of being one thing rather than presenting a version, is genuinely commended.

But that is being true to the truth, not being true to yourself. The Christian version asks what you actually are, measured against something outside you, and then asks that your public self match it. Polonius' version makes the self the standard and the measure at once, which leaves nothing to check it against.

The point

The line is Polonius in Hamlet, a character Shakespeare wrote as a windbag and killed behind a curtain, and it probably meant "look after your own interests" when he said it.

Scripture's account is that the self is the one instrument you cannot use to calibrate itself, which is why it points you to God's word and to other people. That is a less flattering picture and a considerably more useful one.