This topic makes me think of a famous speech in Shakespeare's Hamlet:
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
(If you're not familiar with thou and thine: these were the familiar singular forms of 'you' in Shakespeare's time, thou being the subject and thine being the possessive; canst is 'can' conjugated with thou)
I largely agree with this sentiment, but while the first line is the one most quoted, the third is also vital to its meaning. It's important to be authentic to oneself, but to do so still with good faith to the rest of the world.