Never appear too perfect: Appearing better than others is always dangerous, but most dangerous of all is to appear to have no faults or weaknesses. Envy creates silent enemies. It is smart to occasionally display defects, and admit to harmless vices, in order to deflect envy and appear more human and approachable. Only gods and the dead can seem perfect with impunity.
I have always considered it a worthy endeavor striving to be that wise sage who only really speaks when there is something truly worth sharing or communicating. Noisy blathering people only become vexations or distractions to others around them. There is an African proverb that comes to mind, “Speak softly and carry a big stick.” I believe a person should be able to exhibit intelligence, wisdom, and consideration without eclipsing those around you unnecessarily by your own illumination.